D-Tartaric Acid Diisopropyl Ester

Product Profile

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Names
Preferred IUPAC namedi(propan-2-yl) (2R,3R)-2,3-dihydroxybutanedioate
Other namesDiisopropyl D-tartrate
DIPT
D-tartaric acid, diisopropyl ester
Pronunciation/diː tɑːrˈtærɪk ˈæsɪd daɪˌaɪsəˈprəʊpɪl ˈɛstər/
Identifiers
CAS Number623-50-7
Beilstein Reference1209248
ChEBICHEBI:87193
ChEMBLCHEMBL514250
ChemSpider20400575
DrugBankDB11003
ECHA InfoCard03db3b5d-123b-4912-821f-921613b5ca8b
EC Number241-996-4
Gmelin Reference70241
KEGGC11101
MeSHD002364
PubChem CID131889
RTECS numberWW9375000
UNIISSY9X7612E
UN numberUN3272
CompTox Dashboard (EPA)DTXSID5022621
Properties
Chemical formulaC12H20O6
Molar mass262.29 g/mol
AppearanceColorless to pale yellow liquid
OdorOdorless
Density1.14 g/cm3
Solubility in waterSlightly soluble
log P0.58
Vapor pressure0.01 hPa at 20 °C
Acidity (pKa)2.98
Basicity (pKb)pKb: 15.1
Magnetic susceptibility (χ)-8.2e-6 cm³/mol
Refractive index (nD)1.438
Viscosity20 mPa·s (20°C)
Dipole moment4.85 D
Thermochemistry
Std molar entropy (S⦵298)589.1 J·mol⁻¹·K⁻¹
Std enthalpy of combustion (ΔcH⦵298)-3816 kJ/mol
Pharmacology
ATC codeV03AB36
Hazards
Main hazardsHarmful if swallowed. Causes skin irritation. Causes serious eye irritation.
GHS labellingGHS02, GHS07
PictogramsGHS02,GHS07
Signal wordWarning
Hazard statementsH319: Causes serious eye irritation.
Precautionary statementsP261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P337+P313, P501
NFPA 704 (fire diamond)Health: 2, Flammability: 1, Instability: 0, Special: -
Flash point92.6 °C
Autoignition temperature400 °C
Lethal dose or concentrationLD50 oral rat 3500 mg/kg
LD50 (median dose)LD50 (median dose): Oral rat LD50 = 5200 mg/kg
NIOSHWN1225000
PEL (Permissible)PEL (Permissible): Not established
REL (Recommended)0.05 ppm
IDLH (Immediate danger)Not listed.
Related compounds
Related compoundsL-Tartaric Acid Diisopropyl Ester
D-Tartaric Acid Dimethyl Ester
D-Tartaric Acid Diethyl Ester
D-Tartaric Acid Dipropyl Ester
D-Tartaric Acid
Diisopropyl Tartrate

Chemical ID: CAS Formula HS Code Database

Product Identification
Product Name & IUPAC Name D-Tartaric Acid Diisopropyl Ester
IUPAC: (2R,3R)-2,3-bis(1-methylethoxy)butanedioic acid
Chemical Formula C10H18O6
Synonyms & Trade Names Diisopropyl D-tartrate; D-Tartaric Acid, Diisopropyl Ester
HS Code & Customs Classification 2918.19 — Carboxylic acids with additional oxygen functions; their anhydrides, halides, peroxides, peroxyacids, derivatives; esters of tartaric acid

Section Commentary: Manufacturer Perspective

From technical and plant operation experience, the commercial relevance of D-Tartaric Acid Diisopropyl Ester centers on chiral reagent markets and advanced synthesis intermediates. The diester’s stereochemical purity often guides whether a batch is directed toward pharmaceutical, fine chemical, or catalyst production clients.

Molecular specification targeting C10H18O6 arises not only from stoichiometric calculation but affirmation through validated analytical characterization. The most common industrial challenge in production remains control over the stereoisomeric integrity. Grade definitions frequently vary by end-use: for enantioselective catalysis, resolution performance or optical purity is a decisive release factor, established via extensive control and traceability over raw D-tartaric acid origin, isopropanol purity, and catalyst batch records.

Reference to synonyms like Diisopropyl D-tartrate is not cosmetic. Precise chemical identity on shipping documents prevents regulatory mismatches at customs checkpoints, especially given that many esters exist as both D- and L- forms and as mixed isomers. Internally, consistent use of one nomenclature between site, quality control, and logistics functions avoids shipping errors and confusion in documentation.

HS Code 2918.19 assigns this material broadly under organic acid esters, but effective customs declaration depends on asserting whether the material is for pharmaceutical synthesis, food-additive supply, or other specialty applications. Trade interpretation swings based on the declared intended use and the territory's chemical import policy, so manufacturer documentation carefully aligns HS reporting with both the molecular structure and a defensible intended end use, cross-checked with invoice and COA (certificate of analysis) language.

For every shipment, technical support teams maintain a file of batch-specific control records. This includes all major synthesis checkpoints: esterification completion (monitored by residual alcohol titration), removal of unreacted tartaric acid (solution filtration logic changes by scale), phase separation for organic layer recovery, and impurity profiling based on potential by-products from side ester formation or oxidation during handling. Grade flexibility remains essential—higher purity is often requested for catalyst precursor applications. For customers requiring lower oligomer content or color standards, purification conditions (solvent choice, drying step timing, in-line filtration method) get documented as part of the agreed release criterion.

D-Tartaric Acid Diisopropyl Ester: Technical Properties, Manufacturing Process & Safety Guidelines

Physical & Chemical Properties

Physical State & Appearance

D-Tartaric Acid Diisopropyl Ester typically presents as a clear, colorless to pale yellow liquid, though visual slight color variation reflects trace impurity levels inherent to each production batch and purification process. The product carries a faint ester odor, which intensifies if residual starting alcohol is present. The appearance can shift marginally by grade, as higher-purity fractions obtained by distillation or crystallization display reduced color and odor intensity.

Melting Point, Boiling Point, Flash Point, Density

These physical constants depend on isomeric ratio, purity, and presence or absence of trace volatile impurities. Melting point is typically below room temperature. Boiling point and density values are grade-dependent and should always be confirmed per batch on the Certificate of Analysis before process engineering decisions. The flash point depends on impurity content, so handling procedures reflect worst-case scenarios.

Chemical Stability & Reactivity

In the factory, we see high stability under dry, sealed, and inert conditions. In contact with strong acids, alkalis, or moisture, hydrolysis occurs readily, liberating tartaric acid and isopropanol. Prolonged exposure to heat accelerates decomposition. Formulators and compounders working downstream should avoid exposure to reactive environments and confirm batch performance in actual processing setups.

Solubility & Solution Preparation

Solubility in water is low, but miscibility with common esters, alcohols, and many organic solvents is grade-reliant. Viscosity and solution clarity reveal much about residual impurity content—hazy or colored mixtures may indicate contamination or partial hydrolysis. Always use freshly prepared solvent to avoid water uptake and product degradation.

Technical Specifications & Quality Parameters

Specification Table by Grade

Available grades include standard industrial, high-purity, and custom grades adjusted to customer specification. Typical values for purity, color (APHA), and moisture content shift depending on process route and application sector.

Impurity Profile & Limits

Main impurities originate from unreacted tartaric acid, isopropanol, and by-products formed during esterification such as isopropyl monoesters and higher esters. Impurity monitoring relies on GC, HPLC, and Karl Fischer methods. Information on exact limits can only be released per customer requirement and specified test method.

Test Methods & Standards

Testing protocols follow accepted methodologies for esters: GC for purity and profile, titrimetric determination for acid and ester value, color via APHA, and water by Karl Fischer titration. Regulatory and customer standards set the final acceptance criteria.

Preparation Methods & Manufacturing Process

Raw Materials & Sourcing

Manufacturers select D-tartaric acid based on optical purity and confirmed origin, as stereoisomeric purity affects downstream application. Isopropanol selection emphasizes dryness and absence of catalytic poisons. Consistent feed quality ensures reproducibility in process and minimizes costly purification.

Synthesis Route & Reaction Mechanism

The main route employs direct esterification with removal of water under controlled acidic catalysis. Process variables (catalyst choice, water removal technique, solvent use) are optimized based on throughput, cost, and grade requirements. By-product formation during esterification requires continuous monitoring.

Process Control & Purification

Continuous sampling at critical control points prevents over-esterification or hydrolysis. Distillation or liquid-liquid extraction enables removal of light- and high-boiling impurities, with batch reprocessing for out-of-spec fractions. Each process line is adjusted by impurity profile, not just conversion rate.

Quality Control & Batch Release

Batch approval uses both chemical analysis and organoleptic checks (appearance, odor), especially for pharmaceutical-grade material. Only material matching established profile by internal and customer standards proceeds to packaging.

Chemical Reactions & Modification Potential

Typical Reactions

The compound commonly undergoes transesterification and hydrolysis. Both reactions proceed under acid or base catalysis. Reaction selectivity, rate, and by-product makeup depend on catalyst and impurity profile.

Reaction Conditions

Prominent reactions use mild acid catalysts for hydrolysis and alcoholysis, moderate temperature, and aprotic or low-water solvents. Tighter process windows apply for pharma and optically active end uses.

Derivatives & Downstream Products

D-Tartaric Acid Diisopropyl Ester serves as precursor in asymmetric synthesis and as a resolving agent. Specifications for downstream conversion are tailored based on residual alcohol, monoester, or acid content.

Storage & Shelf Life

Storage Conditions

Storage in tightly sealed, light-resistant containers at controlled room temperature slows degradation. Humidity and oxygen exposure speed up hydrolysis and oxidation, so use of inert gas blanketing proves beneficial, especially for high-purity product.

Container Compatibility

Preferred containers are amber glass, fluoropolymer-lined drums, or stainless steel vessels. Leaching risk and chemical interaction must always be evaluated for new packaging.

Shelf Life & Degradation Signs

Shelf life reflects grade, packaging, and storage discipline. Manufacturers advise using material promptly for the most sensitive applications, especially in pharma and chiral chemistry. Signs of degradation include odor change, coloration, visible phase separation, or decrease in assay.

Safety & Toxicity Profile

GHS Classification

Regulatory classification varies by concentration and region. Manufacturing teams track local and international safety codes, updating SDS as required. Always review batch-specific SDS before handling.

Hazard & Precautionary Statements

Contact with eyes, skin, or mucous membranes can result in irritation. Inhalation of vapors or mist in poorly ventilated processing rooms should be minimized. Operators work with nitrile gloves, goggles, and chemical-resistant aprons. In case of handling accidents, established rinse and ventilation protocols should be enacted.

Toxicity Data, Exposure Limits & Handling

Available toxicity data on diisopropyl esters suggests low acute toxicity, though long-term effects depend on purity and possible contaminants from the production process. Workplaces limit inhalation and skin contact; compliance with occupational exposure guidelines ensures operator safety. Any spill or leak response focuses on rapid containment, dilution, and ventilated clean-up, with spent materials collected in designated hazardous waste containers.

Supply Capacity, Commercial Terms & 2026 Price Trend Forecast: D-Tartaric Acid Diisopropyl Ester

Supply Capacity & Commercial Terms

Production Capacity & Availability

Current output for D-Tartaric Acid Diisopropyl Ester reflects demand from both pharmaceutical and specialty chemical markets. Production batches rely on a continuous supply of high-purity tartaric acid and isopropanol—both sensitive to agricultural feedstock and refinery output cycles. Manufacturing run rates are typically adjusted quarter to quarter based on contracted volumes and spot market requirements. Periods of shortfall often trace back to upstream supply constraints, in particular, natural tartaric acid harvest volatility.

Lead Time & MOQ

Typical lead time for standard grade batches is set based on plant campaign scheduling rather than single-order fulfillment; projects outside standard campaign blocks will see extended timelines. Minimal order quantities remain contingent on campaign scale, current inventory, and formulation requirements—custom purity or customized impurity profile specifications generally carry higher MOQ thresholds or require dedicated production slots.
Lead time extends for off-cycle custom grades, primarily due to required process validation and specific QA release protocols.

Packaging Options

Most orders use HDPE or fluorinated containers for shipment, particularly for bulk export. Specialty applications—such as those targeting high-purity or chiral intermediates—may necessitate double-sealed liners or nitrogen-blanketed drums. Export packaging conforms to IMDG and IATA safety standards when product classification is triggered by downstream hazard evaluation.

Shipping & Payment Terms

Shipments, especially for high-value or custom-grade batches, typically move on CIF or FOB terms according to end-user logistics infrastructure and import licensing status. Letters of Credit remain the dominant payment instrument for new customers or first-time exports, while established contract buyers often use net terms matched to their own batching cycles.

Pricing Structure & Influencing Factors

Raw Material Cost Composition and Fluctuation Causes

Feedstock tartaric acid drives primary cost variances. Its price swings trace to grape or wine byproduct yields, especially out of Europe and parts of Asia. Isopropanol pricing, meanwhile, follows propylene and crude market swings, with occasional spikes tied to refinery outages or feedstock allocation toward disinfectant markets. Energy expenditures in the esterification and purification phases play a secondary—though non-negligible—role and experience sensitivity during periods of high power cost escalation.

Compliance with Graded Price Differences

Pricing reflects more than raw material variation. The main differentiators: product grade and documentation package. Grades for enantiomeric purity, residual solvent level, and impurity profile each carry a price premium, often justified by in-process testing, analytical release, and the use of select-grade input materials. Regulatory documentation (GMP, DMF support, or full audit trail) also shifts the pricing bracket upward, reflecting ongoing compliance investments.

Product Price Difference Explanation: Grade, Purity, Packaging Certification

Chiral purity creates the strongest price segmentation. Applications demanding >99% ee command a marked premium over technical or racemic grades due to the deeper purification, strict in-process monitoring, and final batch verification steps. Purity requirements for pharmaceutical intermediates require validated cleaning protocols, traceable batch records, and documented absence of critical impurities—each adding compliance costs. Custom certification (Kosher, Halal, EU FCM compliance) triggers packaging adjustments and periodic additional audits, reflected as a surcharge.

Global Market Analysis & Price Trends

Global Supply & Demand Overview

Overall supply sits constrained by agricultural tartaric acid cycles in both the EU and China—these two regions cover most of the global demand. EU and JP drive demand for enantiopure and pharma-intermediate grades, placing strict demands on traceability and impurity profile control. IN and CN show rising demand for technical-grade and production-scale intermediates thanks to growing synthesis and contract manufacturing bases. US demand remains steady, emphasizing regulatory-compliant documentation and supply chain resilience.

Key Economies Analysis

  • US: Stable, regulatory-focused market with moderate growth. Documented COA and QA certifications are essential.
  • EU: Tight linkage to agricultural output; shows seasonal price volatility. Strong demand for chiral and high-purity grades for specialty synthesis.
  • JP: Stringent quality and provenance demands. Willingness to pay for analytical support and extended release testing.
  • IN: Growth in local synthesis and API segments increases offtake for technical grades; local bottlenecks in import-dependent raw materials sometimes disrupt supply.
  • CN: Both supply and demand source. Shift toward higher value-added downstream applications continues, though technical grades dominate volume throughput.

2026 Price Trend Forecast

Expect moderate price increases through 2026, driven by agricultural cycle risk, incremental regulatory cost, and ongoing energy price volatility. Chiral and high-purity grades risk sharper spikes tied to batch-based impurity risk and increased analytical scrutiny from downstream audits. Compression in technical grade pricing may appear if raw material inputs experience bumper harvests or global production expands. Conversely, weather events or regulatory import/export barriers in major producing regions would drive sustained premium pricing, especially for custom and pharmaceutical grades.

Data Sources & Methodology

This analysis references aggregation of trade flow statistics from official customs releases, periodic industry reporting, and direct market feedback from regional production and QA teams. Price projections weigh both backward-looking cost indices and forward contract guidance from multinational buyers, incorporating input cost trend monitoring and typical price elasticity in specialty ester markets.

Industry News & Regulatory Updates

Recent Market Developments

Past 24 months saw continued consolidation of tartaric acid production in EU and CN, with some independent producers exiting the market due to regulatory harmonization cost and inconsistent feedstock. Energy price shocks and freight disruptions have prompted increasing interest in localizing value-added esterification steps.

Regulatory Compliance Updates

Recent updates to REACH and FDA submissions highlight the industry’s necessity for ongoing analytical validation and impurity tracking down to sub-ppm for pharmaceutical applications. EU-origin products, in particular, now encounter both stricter environmental emissions compliance and expanded documentation requirements for use in food contact or chiral pharma synthesis.

Supplier Response & Mitigation

Producers have responded with investments in raw material source diversification and tighter quality control systems at both inbound and formulation endpoints. Risk mitigation tactics include dual-sourcing key inputs, holding buffer inventory of essential reagents, and expanding batch-level documentation to anticipate increased customer and regulatory agency scrutiny.

Application Fields & Grade Selection Guide for D-Tartaric Acid Diisopropyl Ester

Industry Applications

D-Tartaric Acid Diisopropyl Ester serves primarily as a chiral building block in asymmetric synthesis, particularly for the pharmaceutical and fine chemical sectors. Demand extends to agrochemical intermediates and analytical reagents, mainly driven by the need for stereoselective processes. Downstream users frequently request material for:

  • Intermediate formation in enantioselective drug synthesis
  • Auxiliary in the preparation of chiral ligands and catalysts
  • Resolving racemic mixtures in lab-scale and industrial settings
  • Standard solutions for research and development in quality control laboratories
Raw material availability, reliability of chiral purity, and suitability for scale-up dictate the degree of adoption across these fields.

Grade-to-Application Mapping

Grade Typical Application Key Property Requirements
Pharmaceutical API intermediate, chiral resolving agent in GMP production High enantiomeric excess, low residual solvent, strict metal and organic impurity control, full traceability
Analytical/Reagent Reference substance, research ligand synthesis Reliable optical purity, certificate of analysis with batch-specific analytical data
Industrial Auxiliary in large-volume synthesis, non-critical chirality step Consistent physical properties, typical optical purity above 98%, relaxed limits for certain process impurities

Key Parameters by Application

Chiral purity (enantiomeric excess) and chemical purity rank highest for API and critical research applications, requiring documented batch analysis and sample retention protocols. Industrial-use material may tolerate broader impurity profiles, but downstream catalytic and resolution efficiency always depends on the actual chiral composition. Residual solvents and process side-products often show up as batch-to-batch variables; here, supply reliability aligns with active in-process controls and requalification schedules.

How to Select the Right Grade

Step 1: Define Application

Start with your end use. Production of a regulated active pharmaceutical ingredient or use in contract R&D projects will require pharma-grade material, justified by validation data and traceability documentation. Analytical or laboratory support roles can use research or analytical grade, where proof of chiral integrity and absence of critical cross-contamination suffice.

Step 2: Identify Regulatory Requirements

Projects involving GMP or other regulated frameworks must comply with pharmacopeial and local oversight body demands. Customers often require access to internal quality assurance records, batch genealogy, and manufacturing change notification, especially in contract manufacturing for global clients. Non-pharma applications may allow streamlined documentation, focused on material origin and process control highlights.

Step 3: Evaluate Purity Needs

Pharma and analytical users typically set tight tolerance for chiral excess, residuals, and trace elements. Industrial grades may afford some flexibility, particularly if further downstream purification steps are in place. Specify minimum necessary values to avoid overspending on specification (and requalification) that the process does not genuinely require.

Step 4: Consider Volume & Budget

Batches destined for pharmaceutical or critical analytical use tend to come in small-to-medium quantities, with cost per kilogram driven by additional purification, testing, and documentation. For industrial customers, volume discounts may apply, but this always sticks to a defined release standard with batch consistency verified by in-process checks. Indicate anticipated volume and delivery frequency to align supply planning with production campaigns.

Step 5: Request Sample for Validation

Pilot batch samples support method development, formulation testing, and compatibility checks. Quality control teams can perform comparative analysis against existing inventory, confirming optical rotation, chromatographic profile, and impurity spectrum. Genealogy and batch documents accompany pharma and analytical grade shipments, while industrial batch samples focus on core analytical results and consistency data.

Manufacturer Considerations in Grade Selection and Release

Downstream application dictates raw material source; medical and analytical users require certified input streams, with lot traceability back through all synthesis steps. Manufacturing process sometimes varies: direct esterification routes produce different impurity fingerprints than stepwise protection/deprotection, so the route reflects required downstream tolerance. Purification strategy, such as crystallization or distillation, directly determines both chiral purity and chemical purity. In-process controls verify chiral composition, with endpoint batch release criteria reviewed by both production and quality teams. Release specifications are subject to continuous evaluation as new customer applications emerge or as regulatory frameworks evolve in target regions.

Storage, Handling, and Batch Consistency

Grade and process route affect sensitivity to ambient conditions; typical pharmaceutical grade mandates storage under inert conditions or with desiccant to protect optical activity. Analytical-grade batches undergo re-testing after defined storage intervals. Consistency management ties back to quality control sampling plans, comparison to retained reference samples, and long-term stability monitoring under typical facility environments. Frequency of log review and batch-to-batch investigation scales with product criticality and customer-specific risk assessments.

Trust & Compliance: Quality Certifications & Procurement Support for D-Tartaric Acid Diisopropyl Ester

Quality Compliance & Certifications

Quality Management Certifications

Our production facility follows recognized quality management system standards. Implementation focuses on traceability in sourcing, intermediate control, and lot release. Auditable evidence tracks raw material origins, process changes, and deviation management. Traceability is a foundation for minimizing batch-to-batch variability in D-Tartaric Acid Diisopropyl Ester. Auditors often review operator training and logbook control to verify each release meets the documented workflow. Guidance from experienced quality teams drives corrective actions and continuous system feedback.

Product-Specific Certifications

Routine GMP-like practices apply to critical process steps when grades are destined for regulated markets or applications. Some D-Tartaric Acid Diisopropyl Ester grades require customer-specified conformity certificates or restricted substance declarations. Food and pharmaceutical sector clients will require more robust lot documentation and impurity profiling compared to technical or industrial grades. Custom statements—such as allergen status, origin, and BSE/TSE declarations—can be issued based on raw material review and process route documentation.

Documentation & Reports

Certificate of Analysis accompanies every batch, reporting controlled key parameters—such as optical purity, residual solvent content, and water by Karl Fischer, where applicable. Analytical results reflect internal methods or mutually pre-approved standards. Long-term clients may request full batch records, including process and cleaning logs, subject to confidentiality commitments. Regulatory support documents—like REACH registration, transportation compatibility, and safety compliance sheets—are updated in coordination with regulatory review cycles and market changes.

Purchase Cooperation Instructions

Stable Production Capacity Supply and Flexible Business Cooperation Plan

Production scheduling is maintained based on contract coverage, with extra capacity allocated for fluctuation in demand. Regular maintenance intervals and redundant process units minimize unexpected downtime, supporting continuity in D-Tartaric Acid Diisopropyl Ester deliveries. Cooperation agreements can be structured as annual supply contracts, quantity-based forecast sharing, or spot purchasing. Technical consultations take production lead times and cross-batch consistency into account when designing bespoke cooperation modes.

Core Production Capacity and Stable Supply Capability

Plant capacity utilization is adjusted across multiple reactor lines to manage both recurring and seasonal client orders. Long-standing suppliers undergo repeat qualification to support consistency in raw material profiles and reduce impurity risk. Multi-shift operations extend plant availability, and backup inventory at regional warehouses can address urgent delivery needs. Long-term buyers may access dedicated campaign production windows, aligned with their downstream schedule requirements.

Sample Application Process

Sample requests follow an internal evaluation to match the required volume and analytical profile to the specific application (e.g. method development, pilot batch use). Standard sample lots reflect full-scale process parameters so users evaluate representative material. Each dispatch includes batch-specific documentation and recommended storage information tailored to the grade and intended end-use. Feedback on sample trials is encouraged—this experience is reviewed with production and QC teams to refine future scale-up or batch allocation.

Detailed Explanation of Flexible Cooperation Mode

Flexible modes adapt to client procurement structures—supporting scheduled call-off, just-in-time delivery, or consignment stock arrangements. Partners with variable forecast accuracy can propose rolling quantities or access buffer stock programs. For multi-site companies, logistics and material release can synchronize to multi-destination requirements while maintaining single-lot traceability. Technical support is available throughout the cooperation term to address raw material changes, documentation audits, or root-cause analysis, ensuring supply reflects both business and technical dimensions.

Market Forecast & Technical Support System for D-Tartaric Acid Diisopropyl Ester

Research & Development Trends

Current R&D Hotspots

In our experience overseeing D-Tartaric Acid Diisopropyl Ester production lines, the primary focus in recent years covers enantioselective synthesis routes, minimizing racemization and maintaining chiral purity throughout the esterification process. Researchers increasingly target cost-effective catalyst systems, with a marked shift away from heavy-metal-based catalysis toward organocatalysts and enzyme-mediated options as environmental pressures mount. In-house, routine attention is given to refining raw material selection—especially the optical isomer ratio of tartaric acid—to deliver more consistent chiral signatures in every batch. Trends reveal growing collaboration between process R&D teams and end-user formulation labs to solve purity drift issues and unlock new asymmetric synthesis pathways.

Emerging Applications

Our technical support frequently encounters queries from synthetic intermediates suppliers, pharmaceutical R&D teams, and fine chemical makers exploring D-Tartaric Acid Diisopropyl Ester as an auxiliary in stereoselective crystallizations and chiral separations. Demand has recently emerged from agrochemical and flavor industries aiming to use this ester in both process-scale resolutions and specialty molecule derivatizations. Performance requirements, especially in pharmaceutical research, drive requests for low-residue and trace-metal-controlled grades—leading to investment in dedicated purification regimes tailored to downstream regulatory expectations.

Technical Challenges & Breakthroughs

Maintaining consistent optically active ester content in high-output continuous esterification processes remains a technical barrier. Impurity management—especially diisopropyl ether residues and unexpected chiral byproducts—frequently prompts in-process root-cause investigations. Over the past cycle, our teams have piloted fractional distillation and selective crystallization schemes to control minor byproduct levels without excessive solvent use, resulting in lower total organic residue and improved lot-to-lot reproducibility. Automated analytical methods now allow rapid feedback on both optical purity and volatile residue profiles, facilitating real-time process correction.

Future Outlook

Market Forecast (3-5 Years)

Internal projections, informed by direct customer orders and supply chain inputs, point to a stable rise in demand from contract development and manufacturing organizations (CDMOs), research chemistry operations, and specialty chemical segments. Capacity expansions focus on flexible, multi-purpose reactors to accommodate both pharma-grade and industrial-grade production. Price trends remain sensitive to the cost of optically pure starting materials and energy inputs, with volatility expected in regions with regulatory shifts in chiral auxiliaries.

Technological Evolution

As regulatory frameworks tighten for pharmaceutical raw materials, manufacturers invest in process analytical technology (PAT) for real-time discrimination of optical isomers. Expect advances in membrane-based separations, green solvent systems, and continuous-flow synthesis, reducing energy footprint and enhancing product profile stability. Proprietary enzyme catalysts under investigation continue to demonstrate improved selectivity and lower downstream separation load, supporting batch consistency and long-term process economics.

Sustainability & Green Chemistry

Regulatory changes and customer audits increase pressure for solvent recovery, waste minimization, and lifecycle traceability. We have piloted solvent loop closure, non-halogenated process media, and in-house recycling of unreacted alcohol agents. Partners in pharmaceutical supply chains seek transparent documentation of carbon balances and cradle-to-gate environmental impact, leading to investments in digital traceability and supplier qualification. Solutions vary by region, but best practices increasingly hinge on raw material origin, process efficiency, and minimal hazardous waste outputs per kilogram ester produced.

Technical Support & After-Sales Service

Technical Consultation

Our technical staff engages directly with formulation chemists, quality managers, and production engineers to troubleshoot integration of D-Tartaric Acid Diisopropyl Ester into asymmetric syntheses, chiral separations, and new process routes. Consultations address solvent compatibility, reactivity with specific substrates, and isolation strategies for high-purity output. Process-scale users benefit from access to historical batch data, failure analysis records, and recommendations for in-line purification systems tailored by application and plant environment.

Application Optimization Support

Support teams provide guidance on grade selection based on the intended synthetic application, including impurity profiling, optical purity thresholds, and residual solvent requirements. For pharmaceutical projects, advice centers on minimizing contamination risks, aligning with pharmacopoeial expectations, and adopting best practices for cleaning validation in multipurpose facilities. Performance feedback from users informs targeted process modifications, especially in controlling batch-to-batch variability and optimizing yield in large-scale crystallizations.

After-Sales Commitment

Commitment to after-sales service includes root-cause investigations on customer complaints, on-site technical visits, and continuous batch monitoring for major accounts. We maintain the ability to adjust specification points in response to application-driven needs, subject to technical and regulatory review. All delivered product traces back to internal release criteria, quality records, and retained samples for dispute resolution or regulatory inspection, ensuring ongoing supply-chain compliance.

D-Tartaric Acid Diisopropyl Ester: Reliable Manufacturing for Industrial Value

Direct Production, Precise Control

Manufacturing D-Tartaric Acid Diisopropyl Ester in-house gives us direct oversight of every critical step, from raw material selection to finished product packaging. We use dedicated lines to handle esterification with consistent process parameters and analytical checkpoints at each stage. By controlling production from base tartaric acid through distillation and purification, we support demanding applications across fine chemical, pharmaceutical, and chiral synthesis sectors.

Key Applications in Industry

This specialty ester finds regular use as a chiral resolving agent and intermediate in synthesizing active pharmaceutical ingredients and fine chemicals. Large-scale production enables us to deliver both routine and custom volume for industrial clients developing enantiomerically pure compounds. Teams formulating catalysts, agrochemical actives, or advanced materials rely on our controlled composition to drive reproducible R&D and manufacturing results.

Ensuring Consistency with Robust Quality Control

We maintain batch consistency through rigorous in-house analytics—NMR, GC, HPLC, and chiral testing—matching tight specifications with every lot. Continuous improvement programs target reduction of residual solvents, byproducts, and variability in optical purity. Every shipment accompanies a detailed certificate of analysis referencing traceable instrument records, supporting regulatory due diligence for regulated manufacturing environments.

Packaging and Large-Scale Supply Capability

Clients can specify volume packaging in sealed drums or bulk containers under inert gas, packed in temperature-moderated environments to preserve stability. Our logistics team arranges prompt dispatch worldwide, using chemical-compliant transport solutions and supply chain backups to manage demand surges. Long-term clients leverage scheduled shipments for uninterrupted plant operations while minimizing storage costs.

Technical and Commercial Support for Industrial Buyers

Process engineers and procurement specialists gain direct access to the chemists who run our manufacturing operations. Project teams requiring scale-up support, troubleshooting, or regulatory documentation receive practical insights drawn from years synthesizing D-Tartaric Acid Diisopropyl Ester at commercial scale. We advise on storage conditions, batch requalification, and any technical assessment needed to align with downstream process requirements.

Business Value for Manufacturers and Supply Chains

By managing our own production and QA, we lower lifecycle risk for formulation teams and procurement departments. Buyers capture measurable value from stabilized pricing, traceable supply, and technical transparency—key factors in qualifying a strategic ingredient for continuous production. Whether supporting local distribution networks or global manufacturing footprints, we bring direct accountability to every product shipped from our facility.

Industrial FAQ

What are the key physicochemical properties (e.g., purity, specific rotation, solubility) of D-Tartaric Acid Diisopropyl Ester?

Purity and Product Consistency

Over the years, our production lines have shown that purity hits the top of the list for D-Tartaric Acid Diisopropyl Ester. High purity supports consistent outcomes in chiral synthesis, particularly for pharmaceutical and agrochemical applications. Clients who need stereoselective results rely on material free from significant by-products and contamination. Our technical team monitors purity at each batch stage using validated HPLC and NMR methods so that what leaves our plant always matches our published specification, with typical purity levels exceeding 99%.

Specific Rotation: A Marker of Stereochemical Integrity

Specific rotation stays central to chiral ester quality. In our experience, clients tend to flag this parameter fast if even the slightest deviation appears. Racemization or even trace amounts of undesired isomer signal gaps in process control. We produce D-Tartaric Acid Diisopropyl Ester using strictly non-racemizing conditions, so each batch consistently delivers a specific rotation in the expected positive range, measured at 20°C in chloroform. We routinely document and archive these values so that any lot can be traced back to its analytical records at any time.

Solubility Profile: Working with Diverse Applications

Solubility matters more than some might think, especially in production environments moving toward greener solvents or scaling up asymmetric synthesis. Our ester dissolves well in most organic solvents—ethyl acetate, methanol, dichloromethane, and hexane among them, based on hundreds of pilot and commercial runs. It poorly dissolves in water, which benefits work-up steps during chiral separation, as organic/aqueous partitions avoid product loss.

Physical Form and Handling in the Plant

During manufacturing, the physical state prompts focus on storage, filling, and shipping. This ester remains a clear to pale yellow liquid at room temperature without forming crystals or sludges, so pumps, valves, and lines flow smoothly during drum or bulk loading. By controlling temperature and minimizing exposure to moisture during storage, we keep unwanted hydrolysis or physical changes at bay.

Odor and Appearance: Minor Details, Major Impacts

While these seem like minor points, odor and appearance determine real-world process safety and batch confirmation. Over the production floor, a faint, characteristic ester scent tells operators the process sits within parameters, and any off-odors trigger review. We also use visual checks for color and clarity as an early warning system for process contamination.

Potential Technical Solutions for Quality Challenges

We keep addressing emerging requirements in purity and chiral performance. In our plant, continuous process monitoring lets us spot shifting impurity profiles as we refine upstream steps. Tighter in-process controls and improvements in catalyst recycling ensure repeatable quality. For clients scaling to kilo or ton levels, our technical service team works directly with their engineers to troubleshoot challenges in solvent recovery or downstream isolation.

Summary

From lot traceability and analytical confirmation to hands-on technical support, our focus runs beyond basic compliance. Every drum of D-Tartaric Acid Diisopropyl Ester reflects investment in process control, people, and precise property management, translating into smooth project development and end-use reliability for our customers.

What is the minimum order quantity and available packaging sizes for procurement of D-Tartaric Acid Diisopropyl Ester?

In the industrial sector, consistency in supply and product reliability matter just as much as chemical purity. Over years of direct manufacturing and supplying D-Tartaric Acid Diisopropyl Ester to large-scale customers and niche specialists alike, we have seen practical demands shape our packing and minimum order practices. This product supports high-impact applications, including additives for asymmetric synthesis and chiral chemistry, where process control starts at the packaging bench just as much as in the lab.

Minimum Order Quantity: Practical Realities of Bulk Chemical Manufacturing

Our minimum order quantity results from clear logistical realities. Shipping small amounts increases per-unit costs, introduces unnecessary risk during transport, and strains production scheduling. Based on our operational experience, the minimum order quantity for D-Tartaric Acid Diisopropyl Ester is 25 kilograms. Orders below this volume do not align with our filling lines nor ensure transport stabilization. This threshold strikes the right balance: small enough to accommodate research and pilot requirements, large enough to suit operational efficiency.

Standard Packaging Sizes: We Know What Works

Our filling stations and warehouse logistics are tuned to chemical industry standards. We have worked with clients who process batches from tens of kilograms up to industrial-scale reactors, so the most practical containers for D-Tartaric Acid Diisopropyl Ester are 25 kilogram HDPE drums and 200 kilogram steel drums. Each drum receives inert gas blanketing to ensure product stability from factory to end-use location. The drums offer low permeability and tough mechanical strength, key for a compound that benefits from careful handling to avoid both contamination and evaporation.

We also offer IBC containers upon request for customers whose usage exceeds 800 kilograms in a single order. These containers cut down the frequency of drum handling, which improves workflow in high-volume plants and shortens turnaround time between receipt and use. Having tried different formats in our own warehouses, we know that anything smaller than 25 kilograms invites inefficiency and spillage risks during decanting.

Why Packaging Size and Minimum Order Matter

Unsafe or improper choices in packaging and logistics have direct impact on costs, project timelines, and workplace safety. From early production runs to full-scale industrial projects, the right container makes traceability easy and keeps quality intact throughout the supply chain. Our approach minimizes product loss, supports compliance, and shortens receiving inspection steps for our customers. Every drum and IBC is labeled with batch data so any technical inquiry can be answered promptly by our team.

Addressing Common Challenges and Special Requests

Some customers approach us with unique needs for trials, requiring smaller splits or alternate packaging. In such situations, our production team evaluates the request thoroughly. If the requested quantity matches hygienic repacking standards and stability requirements, we work to support these trials—sometimes consolidating several small orders during a production campaign to meet the overall minimum. Through this, we maintain the integrity and provenance of every batch, which is fundamental for customers managing regulatory filings or high-value pharma processes.

We keep communication straightforward. Every batch of D-Tartaric Acid Diisopropyl Ester leaves our site in packaging we have tested and trust. By setting practical minimums and offering proven container sizes, we streamline planning for both sides—customers get clear options, and we maintain the quality that industry relies on.

Does D-Tartaric Acid Diisopropyl Ester comply with current international shipping and safety regulations, and what documentation is provided (e.g., SDS, COA)?

Complying with International Shipping Standards

Producing D-Tartaric Acid Diisopropyl Ester in our facilities brings responsibility. Regulatory authorities across global markets maintain tight control over the movement of chemicals, and we keep our logistics team updated with evolving shipping codes. Our product ships out in accordance with regulations such as IATA, IMDG, and ADR. Each consignment leaves our factory properly labeled and packaged, matching chemical compatibility requirements to the letter. We avoid contamination and package degradation by relying on container types proven safe for esters of tartaric acid.

Documentation is essential. Every shipment receives transport documents in line with regulations—these assist customs, shipping agents, and recipients in verifying that contents match shipping category and hazard classification. We confirm our ester’s classification under applicable UN codes and hazard classes, and provide transparent hazard communication, including pictograms and transport emergency cards where necessary. By maintaining up-to-date documentation and careful packaging, we reduce the risk of accidental release or transit delays.

Providing Documentation: SDS and COA

As the manufacturer, we take full ownership of our Safety Data Sheet (SDS) and Certificate of Analysis (COA). Our SDS for D-Tartaric Acid Diisopropyl Ester meets the requirements of REACH, OSHA, GHS, and other internationally recognized frameworks. We issue a current SDS with every shipment, outlining handling precautions, health hazards, fire-fighting guidance, spill management, and recommendations for safe storage. We maintain version control and periodically review the document as new regulatory information and scientific insight become available.

Our laboratory certifies every production batch using validated analytical methods. The COA details typical specifications—purity, appearance, moisture, and other key physical or chemical attributes. Our process ensures that the COA reflects true batch characteristics. This helps our partners in pharmaceuticals, flavors, or specialty chemicals meet their own compliance and traceability requirements. For customers in regions that call for special declarations, we can provide additional reports.

Maintaining Quality and Continuous Compliance

Regulations and best practices evolve. We make regular investments in training for our staff on safe handling and current compliance rules governing flammable and irritant organic compounds. Our team tracks regulatory bulletins and updates processing protocols to reflect the latest international and local standards. Local documentation requirements, such as language or formatting, are respected for each destination country.

Our safety team keeps current emergency response contact information on file and updates protocols for accident prevention and containment. We also keep detailed batch records for full backward traceability if needed for recalls or investigations.

Addressing Challenges in Global Trade

Shipping chemicals internationally always presents new challenges, particularly with supply chain disruptions and shifting transportation codes. By manufacturing to consistent specifications and supporting each shipment with authenticated documentation, we help our customers minimize border delays and reduce the risk of seizure by customs authorities. Our certifications and analysis results travel with the goods, ensuring clarity from factory to final user.

Should a regulation shift occur mid-contract, our team alerts customers and rapidly updates documentation so that all parties remain in full compliance. We respond directly to requests for technical guidance or clarification if a regulatory inspector or customer raises a question at any point of transit or use.

Conclusion

Our direct control over production, testing, and certification gives our partners the certainty that each batch of D-Tartaric Acid Diisopropyl Ester meets current international shipping and safety regulations. Accurate documentation, certified analysis, and ongoing communication allow us to deliver chemicals safely and efficiently, every batch, every shipment.

Technical Support & Inquiry

For product inquiries, sample requests, quotations or after-sales support, please feel free to contact me directly via sales2@liwei-chem.com, +8615380400285 or WhatsApp: +8615380400285