BOC-CYS-OH Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 20887-95-0 |
| Product name | BOC-CYS-OH |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeReagent GradeFood Grade |
| Packaging | 25KG/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 BOC-CYS-OH
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk BOC-CYS-OH Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of BOC-CYS-OH
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Synthesis | Used as a chiral building block for drug synthesis | Incorporated into molecular structures via solid-phase or solution-phase synthesis |
| Chemical Reagents | Used in organic synthesis reactions | Applied as a thiol-protecting reagent |
| Biotechnology | Used for protein modification | Serves as a cysteine residue precursor in solid-phase peptide synthesis |
| Food Industry | Used in food additive development | Formulated as a flavor compound or nutritional supplement ingredient |
| Materials Science | Used in functional material synthesis | Employed as a sulfur-containing compound precursor for polymer synthesis |
Manufacturing Quality Control of BOC-CYS-OH
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies BOC-L-cysteine content by titration with standardized NaOH after acid hydrolysis of the BOC group. |
| Water Content | Karl Fischer Titration | Measures trace water via coulometric or volumetric reaction between water and iodine in a methanol-based reagent. |
| Optical Rotation | Polarimetry | Determines enantiomeric purity by measuring the angle of rotation of plane-polarized light in solution. |
| Residue on Ignition | Gravimetric Analysis | Evaluates inorganic impurities by weighing residue remaining after high-temperature ashing. |
| Heavy Metals | ICP-OES | Quantifies Pb, Cd, Hg, As, and other metals using plasma excitation and elemental emission spectroscopy. |
| Chloride Impurity | Potentiometric Titration | Detects chloride ions by titration with silver nitrate using a silver indicator electrode. |
| Sulfate Impurity | Turbidimetric Method | Measures sulfate as barium sulfate precipitate formed in acidic medium, quantified by light scattering. |
| Related Substances | HPLC-UV | Separates and quantifies structurally related impurities (e.g., de-BOC cysteine, dimer, oxidation products) using reversed-phase chromatography and UV detection. |
| Loss on Drying | Thermogravimetric Analysis | Determines volatile matter by weight loss upon heating at controlled temperature and time under vacuum or nitrogen. |
| pH (1% aqueous solution) | pH Potentiometry | Measures hydrogen ion activity in aqueous solution using calibrated pH electrode. |
| Particle Size Distribution | Laser Diffraction | Analyzes dry or wet dispersed sample to determine size distribution based on light scattering patterns. |
| Microbial Limits | Membrane Filtration | Quantifies aerobic microorganisms and detects specified pathogens (e.g., E. coli, S. aureus) by filtration and culture. |
Technical Specifications of BOC-CYS-OH
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Optical Rotation | +7.5 to +9.0 deg (c=1, in 1M HCl) |
| Melting Point | 178 to 182 °C |
| 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 BOC-CYS-OH
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| Lot/Batch Number | *Required fields | |
NMR Spectra of BOC-CYS-OH
Packaging of BOC-CYS-OH
Industrial BOC-CYS-OH 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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