China Factory Direct
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| CAS number | 65414-78-0 |
| Product name | H-D-ASP-OME |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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 R&D | Intermediate for synthesizing peptide-based drugs | Used as a chiral synthon in solid-phase or solution-phase peptide coupling reactions to prepare drug molecules with specific biological activity |
| Biochemical Research | Amino acid derivative probes | Applied in labeling and detection for enzyme substrate specificity studies or metabolic pathway tracing experiments |
| Organic Synthesis | Chiral auxiliaries or building blocks | Employed as a chiral source in asymmetric synthesis to construct complex molecular architectures via esterification, amidation, and related reactions |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination using reversed-phase HPLC and UV absorbance at ~200–210 nm, calibrated against certified reference standard. |
| Specific Optical Rotation | [α]D | Measurement of optical rotation using a polarimeter at 20 °C with sodium D-line (589 nm) to confirm chiral integrity and enantiomeric identity. |
| Water Content | Karl Fischer titration (coulometric or volumetric) | Electrochemical titration based on the reaction of iodine with water in pyridine/methanol solvent system; measures trace moisture content. |
| Residual Solvents (Methanol, Ethyl Acetate) | GC-FID or GC-MS | Separation and quantification of volatile organic solvents by gas chromatography with flame ionization or mass spectrometric detection. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Multi-element quantification via inductively coupled plasma mass spectrometry after acid digestion and dilution; detects metals at sub-ppb levels. |
| Chloride Impurity | Ion Chromatography (IC) with conductivity detection | Separation of anions on anion-exchange column and quantitative detection via suppressed conductivity; specific for chloride and other halides. |
| Related Substances (Impurity Profile) | HPLC with UV detection | Identification and quantification of structurally related impurities (e.g., D-aspartic acid, methyl ester hydrolysis/degradation products) using gradient HPLC and UV detection. |
| pH (1% aqueous solution) | pH meter measurement | Potentiometric measurement of hydrogen ion activity in a standardized aqueous solution (10 mg/mL) at 25 °C. |
| Residue on Ignition | Gravimetric analysis (weight loss on ignition) | Determination of non-volatile inorganic residue after incineration at 700–800 °C, expressed as percentage weight. |
| Microbial Limits | Membrane filtration followed by agar culture | Enumeration of aerobic microorganisms and detection of specified pathogens (e.g., E. coli, S. aureus) per pharmacopeial compendia (e.g., USP <61>, <62>). |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Optical Rotation | -37.0 to -36.0 deg (c=1, H2O) |
| Melting Point | 118 to 122 °C |
| Identification (NMR) | Conforms to reference spectrum |
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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.