D-CYSTEINE HYDROCHLORIDE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 207121-46-8 |
| Product name | D-CYSTEINE HYDROCHLORIDE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeReagent 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 D-CYSTEINE HYDROCHLORIDE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk D-CYSTEINE HYDROCHLORIDE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of D-CYSTEINE HYDROCHLORIDE
| Industry | Application | Process Description |
|---|---|---|
| Pharmaceuticals | Pharmaceutical Intermediates | Used as a key chiral building block for synthesizing peptides and sulfur-containing compounds |
| Biochemistry | Protein Structure Studies | Applied in site-specific protein modification and thiol group introduction to support studies of protein folding and interactions |
| Food Industry | Food Additives | Used as a precursor for flavor enhancers or antioxidants to improve food flavor and stability |
| Cosmetics | Skincare Ingredients | Applied in anti-aging formulations to promote collagen synthesis and scavenge free radicals |
| Materials Science | Functional Material Preparation | Used as a ligand or structure-directing agent in the synthesis of nanomaterials or metal–organic frameworks (MOFs) |
| Agrochemicals | Pesticide Synthesis | Applied in synthesizing sulfur-containing heterocyclic active ingredients to enhance biological activity and selectivity |
| Environmental Science | Heavy Metal Adsorption Material Preparation | Leverages its thiol groups to chelate heavy metal ions for developing environmental remediation materials |
Manufacturing Quality Control of D-CYSTEINE HYDROCHLORIDE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (D-Cysteine HCl Monohydrate) | Acid-Base Titration | Quantifies active ingredient by titration with standardized NaOH after dissolution and neutralization of HCl. |
| Optical Rotation | [alpha]D Measurement | Measures specific rotation using a polarimeter to confirm chiral purity and identity of D-isomer. |
| Water Content | Karl Fischer Titration | Determines total water content via coulometric or volumetric reaction with iodine in pyridine-methanol medium. |
| Heavy Metals | ICP-OES | Quantifies trace metals (Pb, Cd, As, Hg, etc.) by plasma excitation and elemental emission spectroscopy. |
| Residue on Ignition | Gravimetric Analysis | Measures inorganic impurities by ignition at 700-800 C and weighing residual ash. |
| Chloride Content | Argentometric Titration | Determines chloride ions by titration with silver nitrate using potentiometric or chromate endpoint detection. |
| pH (1% w/v solution) | pH Potentiometry | Measures hydrogen ion activity in aqueous solution using calibrated glass electrode. |
| Related Substances | HPLC-UV | Separates and quantifies impurities (e.g., L-cysteine, cystine, degradation products) using reversed-phase chromatography and UV detection. |
| Sulfate | Barium Sulfate Gravimetry | Precipitates sulfate as BaSO4 and determines mass after filtration and drying. |
| Loss on Drying | Thermogravimetry | Measures volatile loss (excluding water) by weight change after drying at 105 C for specified time. |
| Microbial Limits | Membrane Filtration | Detects aerobic microorganisms and specified pathogens using culture-based enumeration on selective media. |
| Particle Size Distribution | Laser Diffraction | Determines size distribution of solid particles in suspension by analyzing light scattering pattern. |
Technical Specifications of D-CYSTEINE HYDROCHLORIDE
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Optical Rotation | -7.0 to -5.0 deg (c=1, H2O) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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 D-CYSTEINE HYDROCHLORIDE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of D-CYSTEINE HYDROCHLORIDE
Packaging of D-CYSTEINE HYDROCHLORIDE
Industrial D-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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