DL-Cysteine hydrochloride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 10318-18-0 |
| Product name | DL-Cysteine hydrochloride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty 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
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DL-Cysteine hydrochloride 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
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Production of expectorants and antioxidants | Purification following chemical synthesis or biological fermentation |
| Food Industry | Nutritional fortificant and antioxidant | Incorporated into food formulations via blending |
| Cosmetics Industry | Antioxidant ingredient in skincare products | Formulated into product matrices and combined with other active ingredients |
| Agriculture | Animal feed additive | Blended into feed formulations |
| Chemical Industry | Intermediate for synthesizing other sulfur-containing compounds | Used as a catalyst or reactant in specific organic synthesis reactions |
Manufacturing Quality Control of DL-Cysteine hydrochloride
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (DL-Cysteine HCl content) | Acid-base titration with NaOH | Quantifies the main component by neutralizing the hydrochloride salt with standardized sodium hydroxide solution using a pH indicator or potentiometric endpoint. |
| Specific Optical Rotation | Polarimetry | Measures the rotation of plane-polarized light caused by chiral DL-cysteine HCl in solution, confirming identity and enantiomeric composition. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Determines total heavy metal content by atomizing the sample and measuring absorbance of characteristic wavelengths for lead. |
| Sulfate (SO4) | Gravimetric analysis | Precipitates sulfate as barium sulfate and determines content from the dried precipitate mass. |
| Chloride (Cl) | Potentiometric titration with AgNO3 | Quantifies chloride ions via argentometric titration using silver nitrate and a silver electrode for endpoint detection. |
| Loss on Drying | Gravimetric method (105 C oven drying) | Measures volatile matter including water by weight loss after drying at specified temperature and time. |
| Residue on Ignition | Gravimetric method (500-600 C muffle furnace) | Determines inorganic impurities by weighing residue remaining after high-temperature ashing. |
| pH (1% aqueous solution) | pH meter measurement | Measures hydrogen ion activity in a standardized aqueous solution to assess acidity and stability. |
| Related Substances (impurities) | High Performance Liquid Chromatography (HPLC) | Separates and quantifies structurally related impurities (e.g., cystine, L-cysteine, D-cysteine) using UV detection. |
| Microbial Limits | Membrane filtration and plate count | Detects and enumerates aerobic microorganisms and specified pathogens using culture-based methods per pharmacopeial standards. |
Technical Specifications of DL-Cysteine hydrochloride
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 175-179°C |
| Total Impurities | <=2.0% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Optical Rotation | +/- 0.5° (c=1, H2O) |
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
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of DL-Cysteine hydrochloride
Packaging of DL-Cysteine hydrochloride
Industrial DL-Cysteine hydrochloride 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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