China Factory Direct
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| CAS number | 168300-88-7 |
| Product name | FMOC-D-CYS(ACM)-OH |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Intermediate | Used in the synthesis of peptide-based drugs |
| Biochemistry | Peptide Synthesis | Employed as a protected amino acid in the assembly of polypeptide chains |
| Medical Research | Biologically Active Peptide Studies | Applied to investigate the structure and function of biologically active peptides |
| Chemical Biology | Antibody Labeling and Protein Engineering | Utilized as a linker in antibody labeling and protein engineering |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-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 (e.g., deacetylated, oxidized, or hydrolyzed forms) via gradient HPLC separation and UV response. |
| Residual Solvents | GC-FID | Measures trace organic solvents (e.g., DMF, DCM, methanol) using gas chromatography with flame ionization detection against calibrated standards. |
| Water Content | Karl Fischer Titration | Determines water by coulometric or volumetric titration with iodine-based reagent, based on stoichiometric reaction with water. |
| Heavy Metals | ICP-MS | Quantifies elemental impurities (e.g., Pb, Cd, As, Hg) using inductively coupled plasma mass spectrometry after acid digestion. |
| Residue on Ignition | Gravimetric Analysis | Measures inorganic ash content by high-temperature ignition followed by precise weighing of residual non-volatile material. |
| Optical Rotation | [alpha]D Measurement | Determines specific optical rotation using a polarimeter to confirm chiral integrity and enantiomeric purity (D-configuration). |
| Chiral Purity | Chiral HPLC | Separates D- and L-enantiomers on a chiral stationary phase and quantifies enantiomeric excess via UV detection. |
| pH (1% w/v aqueous solution) | Potentiometric pH Measurement | Measures hydrogen ion activity in aqueous suspension using calibrated glass electrode and pH meter. |
| Particle Size Distribution | Laser Diffraction | Analyzes dry or dispersed particle size distribution by measuring angular variation in laser light scattering intensity. |
| Microbial Contamination | Membrane Filtration | Detects aerobic microorganisms by filtration, membrane transfer to nutrient agar, and colony enumeration after incubation. |
| Endotoxin Level | LAL Assay | Quantifies bacterial endotoxins using Limulus amebocyte lysate reactivity, measured via chromogenic or turbidimetric endpoint detection. |
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.5% (LC-MS) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Optical Rotation | +43.0 to +45.0 deg (c=1, DMF) |
| Identification (NMR) | Conforms to reference spectrum |
| Residue on Ignition | <=0.2% |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.