Dimethyl L-cystinate dihydrochloride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 32854-09-4 |
| Product name | Dimethyl L-cystinate dihydrochloride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent GradeCosmetic GradeFood 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 Dimethyl L-cystinate dihydrochloride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Dimethyl L-cystinate dihydrochloride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Dimethyl L-cystinate dihydrochloride
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Pharmaceutical intermediate | Used in the synthesis of thiol-containing drugs or peptide compounds |
| Biochemistry | Protecting reagent for peptide synthesis | Applied as a cysteine derivative in solid-phase or solution-phase peptide synthesis |
| Chemical research | Chiral building block | Employed in asymmetric synthesis and chiral molecule construction |
| Cosmetics | Potential antioxidant precursor | Integrated into active ingredient manufacturing processes following conversion |
Manufacturing Quality Control of Dimethyl L-cystinate dihydrochloride
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reversed-phase HPLC with UV detection at 210 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-UV | Separation and detection of impurities using gradient HPLC-UV; identification and quantification based on relative retention times and response factors. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify common solvents (e.g., methanol, dichloromethane) against calibrated standards. |
| Water Content | Karl Fischer Titration | Electrochemical titration with iodine reagent to determine trace water content based on stoichiometric reaction with water. |
| Heavy Metals | ICP-MS | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, As) after acid digestion, using isotopic detection for high sensitivity. |
| Chloride Content | Potentiometric Titration | Titration with silver nitrate using a silver indicator electrode to detect endpoint based on AgCl precipitation potential change. |
| pH of Aqueous Solution | pH Meter Measurement | Direct measurement of pH in a 1% w/v aqueous solution using a calibrated pH meter with glass electrode. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light through a standardized solution to confirm chiral integrity and enantiomeric purity. |
| Residue on Ignition | Gravimetric Analysis | Heating sample at 700-800 C to constant weight and measuring inorganic ash residue as percentage of original mass. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder dispersion using laser scattering to determine volume-based particle size distribution (D10, D50, D90). |
| Microbial Limits | Membrane Filtration | Enumeration of aerobic microorganisms and absence testing for specified pathogens using membrane filtration followed by agar culture incubation. |
| Appearance and Color | Visual Inspection | Comparison of crystalline solid against established reference standards under controlled lighting for clarity, color, and physical form. |
Technical Specifications of Dimethyl L-cystinate dihydrochloride
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 210–215°C (decomposes) |
| Optical Rotation | -37° to -31° (c=1, 6M HCl) |
| Total Impurities | <=2.0% (HPLC) |
| Single Impurity | <=0.5% (HPLC) |
| Heavy Metals | <=20 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 Dimethyl L-cystinate dihydrochloride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Dimethyl L-cystinate dihydrochloride
Safety Information of Dimethyl L-cystinate dihydrochloride
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of Dimethyl L-cystinate dihydrochloride
Industrial Dimethyl L-cystinate dihydrochloride 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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