S-Allyl-D-cysteine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 770742-93-3 |
| Product name | S-Allyl-D-cysteine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeFood Grade |
| Packaging | 25KG/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 S-Allyl-D-cysteine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk S-Allyl-D-cysteine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of S-Allyl-D-cysteine
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical | Development of antitumor drugs (allicin derivatives) | Used in organic synthesis |
| Pharmaceutical | Synthesis of pharmaceutical intermediates | Used in chemical synthesis |
| Food/Chemical | Development of food additives or flavor compounds | Applied in chemical extraction and synthesis |
Manufacturing Quality Control of S-Allyl-D-cysteine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies S-allyl-D-cysteine concentration using reversed-phase HPLC with UV detection at 205-210 nm based on peak area comparison with reference standard. |
| Chiral Purity | Chiral HPLC | Determines enantiomeric excess of D-isomer using a chiral stationary phase and UV detection, comparing retention times and peak areas against D- and L-reference standards. |
| Water Content | Karl Fischer Titration | Measures trace water by coulometric or volumetric titration using iodine generated electrochemically or added reagent, based on stoichiometric reaction with water. |
| Residual Solvents | GC-FID | Identifies and quantifies common organic solvents (e.g., methanol, ethanol, acetone) using gas chromatography with flame ionization detection and external calibration. |
| Heavy Metals | ICP-MS | Quantifies trace heavy metals (Pb, Cd, Hg, As, etc.) after acid digestion by measuring elemental isotopic signals in an inductively coupled plasma mass spectrometer. |
| Sulfate Residue | Ion Chromatography | Separates and quantifies sulfate anion using suppressed conductivity detection after separation on an anion-exchange column with carbonate/bicarbonate eluent. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities (e.g., D-cysteine, allyl disulfides, oxidation products) using gradient HPLC-UV with appropriate column and mobile phase. |
| Optical Rotation | [alpha]D Measurement | Determines specific optical rotation using a polarimeter at 20 °C with sodium D-line (589 nm), confirming chiral integrity and concentration-dependent rotation. |
| pH (1% w/v aqueous solution) | Potentiometric pH Measurement | Measures hydrogen ion activity in a standardized aqueous solution using calibrated glass electrode and pH meter. |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by ignition at 600-700 °C followed by weighing of residual non-volatile material. |
| Microbial Contamination | Membrane Filtration | Quantifies aerobic mesophilic microorganisms by filtering sample through sterile membrane, culturing on soybean-casein digest agar, and counting colony-forming units. |
| Particle Size Distribution | Laser Diffraction | Measures particle size distribution in dry powder form using Mie theory-based light scattering analysis of dispersed particles in air. |
Technical Specifications of S-Allyl-D-cysteine
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (LC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Optical Rotation | +8.0 to +15.0 deg (c=1, H2O) |
| Melting Point | 145 to 155 °C |
| 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 S-Allyl-D-cysteine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of S-Allyl-D-cysteine
Packaging of S-Allyl-D-cysteine
Industrial S-Allyl-D-cysteine 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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