2,3-Di-O-para-toluoyl-D-tartaric acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 32634-68-7 |
| Product name | 2,3-Di-O-para-toluoyl-D-tartaric acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for 2,3-Di-O-para-toluoyl-D-tartaric acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,3-Di-O-para-toluoyl-D-tartaric acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,3-Di-O-para-toluoyl-D-tartaric acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Chiral resolving agent | Used to resolve racemic pharmaceuticals (e.g., amino acids, amines) by forming diastereomeric salts with the target enantiomer for separation. |
| Pharmaceutical Industry | Pharmaceutical intermediate | Serves as a key intermediate in the synthesis of chiral drugs and participates in asymmetric synthesis reactions. |
| Chemical Industry | Chiral auxiliary | Acts as a chiral source in asymmetric synthesis to induce formation of optically active products with specific configuration. |
| Chemical Industry | Fine chemical synthesis | Applied in the synthesis of other high-optical-purity tartaric acid derivatives. |
Manufacturing Quality Control of 2,3-Di-O-para-toluoyl-D-tartaric acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 210-230 nm. |
| Specific Optical Rotation | [alpha]D | Measurement of optical rotation using a polarimeter at 20 degrees C with sodium D-line (589 nm) light, reported as deg*cm2/g. |
| Chiral Purity | Chiral HPLC | Separation and quantification of enantiomeric impurities using a chiral stationary phase and UV detection. |
| Residual Solvents | GC-FID | Identification and quantification of volatile organic solvents by gas chromatography with flame ionization detection, per ICH Q3C guidelines. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration based on the reaction of iodine with water in a pyridine-methanol solvent system. |
| Heavy Metals | ICP-MS | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, As) after acid digestion, using inductively coupled plasma mass spectrometry. |
| Residue on Ignition | Gravimetric Analysis | Determination of inorganic ash content by high-temperature incineration followed by weighing of the residual residue. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measurement of hydrogen ion activity in a 1% w/v aqueous suspension using a calibrated pH meter with glass electrode. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, observed visually under controlled heating rate. |
| Related Substances | HPLC-UV | Detection and quantification of structurally related impurities (e.g., mono-acylated, deacylated, or racemic forms) using gradient reversed-phase HPLC. |
| Sulfated Ash | Gravimetric Analysis | Quantification of inorganic sulfate residues after combustion with sulfuric acid and subsequent ignition and weighing. |
| Microbial Limits | Membrane Filtration and Plate Count | Enumeration of aerobic mesophilic microorganisms and absence testing for specified pathogens per USP <61> and <62>. |
Technical Specifications of 2,3-Di-O-para-toluoyl-D-tartaric acid
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=99.0% (HPLC) |
| Optical Rotation | +134.0 to +142.0 (c=1, in methanol) |
| Melting Point | 168 to 172 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 2,3-Di-O-para-toluoyl-D-tartaric acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,3-Di-O-para-toluoyl-D-tartaric acid
Safety Information of 2,3-Di-O-para-toluoyl-D-tartaric acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,3-Di-O-para-toluoyl-D-tartaric acid
Industrial 2,3-Di-O-para-toluoyl-D-tartaric acid Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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