DL-Cysteine hydrochloride monohydrate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 96998-61-7 |
| Product name | DL-Cysteine hydrochloride monohydrate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical 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 DL-Cysteine hydrochloride monohydrate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DL-Cysteine hydrochloride monohydrate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DL-Cysteine hydrochloride monohydrate
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Drug manufacturing | Used as a raw material in the synthesis of certain pharmaceuticals, including antioxidants and protein stabilizers |
| Food industry | Food additive | Applied as a food preservative, antioxidant, and texture enhancer |
| Cosmetics | Personal care and skincare products | Used in the production of skincare formulations to support skin hydration and barrier repair |
| Biotechnology | Biochemical research | Applied in studies of protein structure and function, as well as in protein purification |
| Agriculture | Animal and plant protection | Used as a feed additive to enhance animal immune function |
Manufacturing Quality Control of DL-Cysteine hydrochloride monohydrate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (C3H7NO2S.HCl.H2O) | Acid-Base Titration with NaOH | Quantifies total acid content by neutralizing HCl moiety using standardized NaOH and phenolphthalein indicator. |
| Optical Rotation | [alpha]D Measurement | Measures specific rotation at 589 nm to confirm chiral purity and absence of significant racemization. |
| Heavy Metals (as Pb) | Colorimetric Sulfide Precipitation | Compares sample solution color after sulfide treatment with lead standard under specified pH and conditions. |
| Loss on Drying | Gravimetric Thermogravimetry | Determines volatile content including water by mass loss after drying at 105 C for 2 hours. |
| Residue on Ignition | Gravimetric Ashing | Measures inorganic impurities by weight of residue remaining after ignition at 600 C. |
| Chloride (Cl-) | Potentiometric Titration with AgNO3 | Quantifies chloride ions via silver nitrate titration monitored by silver electrode potential change. |
| Sulfate (SO42-) | Barium Sulfate Gravimetry | Precipitates sulfate as BaSO4 and determines content from dried precipitate mass. |
| Related Substances | HPLC with UV Detection | Separates and quantifies impurities (e.g., cystine, cysteine disulfide) using reversed-phase C18 column and UV detection at 210 nm. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measures hydrogen ion activity in 1% w/v aqueous solution using calibrated pH meter. |
| Iron (Fe) | Atomic Absorption Spectroscopy (AAS) | Quantifies iron content by measuring absorbance of ground-state Fe atoms at 248.3 nm in air-acetylene flame. |
| Arsenic (As) | Arsenic Spot Test (Gutzeit Method) | Detects trace arsenic by generation of arsine gas, reaction with mercuric bromide paper, and color comparison. |
| Microbial Limits | Membrane Filtration and Plate Count | Determines total aerobic microbial count and absence of specified pathogens using standardized culture media and incubation. |
Technical Specifications of DL-Cysteine hydrochloride monohydrate
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Melting Point | 175–179 °C |
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 DL-Cysteine hydrochloride monohydrate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of DL-Cysteine hydrochloride monohydrate
Safety Information of DL-Cysteine hydrochloride monohydrate
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of DL-Cysteine hydrochloride monohydrate
Industrial DL-Cysteine hydrochloride monohydrate 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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