China Factory Direct
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| CAS number | 73913-64-1 |
| Product name | H-D-VAL-OET HCL |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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) |
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 |
|---|---|---|
| Pharmaceuticals | Raw material for peptide synthesis (e.g., intermediate for dapagliflozin) | Peptide bond coupling reaction |
| Chemicals | Chiral reagent or intermediate | Asymmetric synthesis |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination using reversed-phase HPLC and UV absorbance at 210 nm, calibrated against reference standard. |
| Enantiomeric Purity | Chiral HPLC | Separation of D- and L-enantiomers on a chiral stationary phase, with UV detection for peak area ratio calculation. |
| Water Content | Karl Fischer titration | Volumetric or coulometric titration based on the reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Residual Solvents | Gas Chromatography (GC) | Headspace GC-FID analysis to quantify residual ethanol, ethyl acetate, and other process solvents per ICH Q3C guidelines. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and others after acid digestion, using plasma optical emission spectroscopy. |
| Chloride Content | Potentiometric titration with AgNO3 | Titration with silver nitrate using a silver indicator electrode; endpoint detected by potential change. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through a solution, used to confirm stereochemical identity and purity. |
| pH (1% aqueous solution) | pH meter measurement | Electrochemical measurement of hydrogen ion activity in a standardized aqueous solution at 25 C. |
| Related Substances | HPLC with gradient elution | Separation and quantification of structurally related impurities (e.g., D-valine, diethyl ester, hydrolysis products) using UV detection. |
| Residue on Ignition | Gravimetric analysis | Weighing of inorganic residue remaining after high-temperature ashing at 700-800 C. |
| Particle Size Distribution | Laser diffraction | Analysis of scattered laser light intensity to determine volume-based particle size distribution in dry or wet dispersion. |
| Microbial Limits | Membrane filtration and plate count | Enumeration of aerobic mesophilic microorganisms and absence testing for specified pathogens per USP <61> and <62>. |
| Test Item | Specification |
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| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 128-132°C |
| Optical Rotation | -6.5 to -5.5° (c=1, in 1M HCl) |
| Total Impurities | <=2.0% (HPLC) |
| Single Impurity | <=0.5% (HPLC) |
| Heavy Metals | <=10 ppm |
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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.