S-ALLYL-L-CYSTEINE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 21593-77-1 |
| Product name | S-ALLYL-L-CYSTEINE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeFood GradeCosmetic 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 S-ALLYL-L-CYSTEINE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk S-ALLYL-L-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-L-CYSTEINE
| Industry | Application | Process |
|---|---|---|
| Food | As a food additive in flavorings | Produced via chemical synthesis or microbial fermentation |
| Pharmaceuticals | For synthesis of pharmaceutical intermediates | Prepared via organic synthesis reactions |
| Cosmetics | As an antioxidant and skin-conditioning agent | Purified and formulated using fine chemical processing |
| Animal Nutrition | As a feed additive to support animal health | Chemically synthesized and incorporated into feed formulations |
| Biotechnology | For biocatalysis or enzyme modification | Used as a substrate or auxiliary reagent in bioreactors |
Manufacturing Quality Control of S-ALLYL-L-CYSTEINE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies S-allyl-L-cysteine by reversed-phase HPLC with UV detection at 205-210 nm using a C18 column and aqueous/organic mobile phase. |
| Chiral Purity | Chiral HPLC | Separates enantiomers using a chiral stationary phase; confirms L-configuration by retention time comparison with reference standard. |
| Water Content | Karl Fischer Titration | Measures trace water via coulometric or volumetric titration using iodine-based redox reaction in anhydrous methanol/pyridine medium. |
| Residual Solvents | GC-FID | Detects and quantifies volatile organic solvents (e.g., ethanol, acetone) by gas chromatography with flame ionization detection. |
| Heavy Metals | ICP-MS | Determines trace heavy metals (Pb, Cd, Hg, As) by inductively coupled plasma mass spectrometry after acid digestion. |
| Sulfate Residue | Ion Chromatography | Quantifies sulfate ions using suppressed conductivity detection after separation on an anion-exchange column. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measures hydrogen ion activity in a 1% w/v aqueous solution using calibrated glass electrode and pH meter. |
| Specific Optical Rotation | Polarimetry | Determines enantiomeric identity and concentration by measuring rotation of plane-polarized light at 20 C and 589 nm. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities (e.g., L-cysteine, S-propyl-L-cysteine, oxidation products) using gradient HPLC. |
| Loss on Drying | Gravimetric Thermogravimetry | Measures volatile content by weight loss after drying at 105 C for 2 hours under controlled atmospheric conditions. |
| Microbial Limits | Membrane Filtration | Quantifies aerobic mesophilic bacteria and molds/yeasts by filtration, membrane transfer to selective agar, and colony enumeration. |
| Residue on Ignition | Sulfated Ash Gravimetry | Determines inorganic residue by ignition at 600-700 C followed by weighing of residual sulfated ash after sulfuric acid treatment. |
Technical Specifications of S-ALLYL-L-CYSTEINE
| Test Item | Specification |
|---|---|
| Appearance | White to off-white powder |
| Purity | ≥97.0% |
| Specific rotation at 20°C | -8°~-15° |
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-L-CYSTEINE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of S-ALLYL-L-CYSTEINE
Packaging of S-ALLYL-L-CYSTEINE
Industrial S-ALLYL-L-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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