FMOC-S-DIPHENYLMETHYL-L-CYSTEINE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 247595-29-5 |
| Product name | FMOC-S-DIPHENYLMETHYL-L-CYSTEINE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent 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 FMOC-S-DIPHENYLMETHYL-L-CYSTEINE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk FMOC-S-DIPHENYLMETHYL-L-CYSTEINE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of FMOC-S-DIPHENYLMETHYL-L-CYSTEINE
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Synthesis | As an amino acid derivative for synthesizing peptide- and protein-based therapeutics | Combined with the fluorenylmethyloxycarbonyl (Fmoc) group via organic synthesis using S-(diphenylmethyl)-L-cysteine |
| Biochemistry | Protecting group in solid-phase peptide synthesis | Used as a protected form of cysteine in solid-phase synthesis to prevent side reactions |
| Chemical Reagents | Synthetic intermediate for preparing functionally tailored compounds | Employed in coupling reactions and deprotection steps to construct complex molecular architectures |
Manufacturing Quality Control of FMOC-S-DIPHENYLMETHYL-L-CYSTEINE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities using gradient HPLC-UV; identification based on retention time relative to reference standards or threshold reporting. |
| Residual Solvents | GC-FID | Measures volatile organic solvents (e.g., DMF, DCM, methanol) by gas chromatography with flame ionization detection using headspace sampling. |
| Water Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration using iodine-based reagent where water reacts stoichiometrically with iodine and sulfur dioxide. |
| Heavy Metals | ICP-MS | Quantifies trace metal impurities (e.g., Pb, Cd, Ni, Pd) after acid digestion using inductively coupled plasma mass spectrometry for multi-element detection at sub-ppq levels. |
| Chloride Content | Ion Chromatography | Separates and quantifies chloride ions using anion-exchange column with suppressed conductivity detection following sample dissolution in dilute nitric acid. |
| Optical Rotation | [alpha]D Measurement | Measures specific optical rotation using a polarimeter at 20 C and 589 nm sodium D-line to confirm chiral integrity and enantiomeric purity. |
| Residual Palladium | ICP-OES | Quantifies palladium from coupling catalyst residues after microwave-assisted acid digestion using inductively coupled plasma optical emission spectrometry. |
| Loss on Drying | Gravimetric Analysis | Determines volatile content by measuring weight loss after drying under controlled temperature and vacuum conditions per USP <731>. |
| Particle Size Distribution | Laser Diffraction | Measures particle size distribution in dispersed suspension using Mie scattering theory and laser diffraction instrumentation. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Determines pH of a defined suspension (e.g., 1% w/v in water) using calibrated glass electrode and pH meter. |
| Microbial Limits | Membrane Filtration | Quantifies aerobic microorganisms and detects specified pathogens (e.g., E. coli, S. aureus) by membrane filtration followed by incubation on selective agar media per USP <61> and <62>. |
Technical Specifications of FMOC-S-DIPHENYLMETHYL-L-CYSTEINE
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.5% (by LC-MS) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 148–152 °C |
| Optical Rotation | -27.0 to -25.0 ° (c=1, in DMF) |
| Identification (NMR) | Conforms to reference spectrum |
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 FMOC-S-DIPHENYLMETHYL-L-CYSTEINE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of FMOC-S-DIPHENYLMETHYL-L-CYSTEINE
Safety Information of FMOC-S-DIPHENYLMETHYL-L-CYSTEINE
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of FMOC-S-DIPHENYLMETHYL-L-CYSTEINE
Industrial FMOC-S-DIPHENYLMETHYL-L-CYSTEINE 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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