(-)-O-ACETYL-D-MANDELIC ACID Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 51019-43-3 |
| Product name | (-)-O-ACETYL-D-MANDELIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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 (-)-O-ACETYL-D-MANDELIC ACID
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk (-)-O-ACETYL-D-MANDELIC ACID Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of (-)-O-ACETYL-D-MANDELIC ACID
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Chiral resolving agent for preparing optically active pharmaceutical intermediates | Used as a chiral auxiliary in asymmetric synthesis or racemate resolution |
| Pharmaceutical R&D | Critical chiral intermediate for synthesizing β-blockers (e.g., atenolol, metoprolol) | Introduces chiral centers via esterification, hydrolysis, or condensation reactions |
| Fine Chemicals | Chiral building block | Applied to construct organic molecules with defined stereochemistry |
Manufacturing Quality Control of (-)-O-ACETYL-D-MANDELIC ACID
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 210 nm, comparing peak area against a certified reference standard. |
| Enantiomeric Excess (ee) | Chiral HPLC | Separation of enantiomers on a chiral stationary phase, with quantification based on peak area ratio of (-)-isomer to total isomers. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify common organic solvents (e.g., ethyl acetate, methanol) against calibration standards. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine-based reagent to determine trace water content via stoichiometric reaction. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and Ni after acid digestion, based on atomic emission intensity at characteristic wavelengths. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anions using suppressed conductivity detection after eluent gradient separation. |
| Sulfated Ash | Gravimetric Analysis | Incineration at 750 C followed by weighing of non-volatile inorganic residue as sulfate ash. |
| Optical Rotation | [alpha]D Measurement | Determination of specific optical rotation using a sodium D-line polarimeter at specified concentration, path length, and temperature. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed visually or automatically during controlled heating of a capillary-packed sample. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity against defined standards under controlled lighting conditions. |
| Related Substances | HPLC-UV (Forced Degradation Study) | Detection and quantification of structurally related impurities (e.g., D-mandelic acid, O-acetylmandelic anhydride) using stability-indicating HPLC method. |
| Residual Palladium | ICP-MS | Ultra-trace quantification of palladium catalyst residues after microwave-assisted digestion, using isotopic mass spectrometry detection. |
Technical Specifications of (-)-O-ACETYL-D-MANDELIC ACID
| Test Item | Specification |
|---|---|
| Appearance | Off-white solid |
| Purity | >=98.0% (LC-MS) |
| Optical Rotation | -155° to -151° (c = 2, in acetone) |
| Melting Point | 78°C to 82°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| 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 (-)-O-ACETYL-D-MANDELIC ACID
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of (-)-O-ACETYL-D-MANDELIC ACID
Packaging of (-)-O-ACETYL-D-MANDELIC ACID
Industrial (-)-O-ACETYL-D-MANDELIC 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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