H-DL-LEU-OBZL P-TOSYLATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 200123-51-9 |
| Product name | H-DL-LEU-OBZL P-TOSYLATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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 H-DL-LEU-OBZL P-TOSYLATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk H-DL-LEU-OBZL P-TOSYLATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of H-DL-LEU-OBZL P-TOSYLATE
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Chemistry | Chiral intermediate for synthesizing peptide-based drugs or biologically active molecules | Amino acid protection and coupling reactions in solid-phase or solution-phase peptide synthesis |
| Organic Synthesis | Chiral building block for asymmetric synthesis | Stereoselective reactions, including catalytic hydrogenation, condensation, and transesterification |
| Drug Discovery | Preparation of leucine-containing compound libraries | Modular synthesis strategies in combinatorial chemistry or high-throughput screening |
Manufacturing Quality Control of H-DL-LEU-OBZL P-TOSYLATE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification via reverse-phase HPLC with UV detection at 205-220 nm using external standard calibration. |
| Related Substances | HPLC-UV | Separation and quantification of impurities using gradient HPLC-UV with a C18 column and suitable reference standards. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify volatile organic solvents (e.g., methanol, toluene, ethyl acetate). |
| Water Content | Karl Fischer Titration | Electrochemical titration with iodine-based reagent to determine trace water content in the sample. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and other heavy metals after acid digestion and plasma excitation. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride ions in aqueous extract of the sample. |
| Sulfate Impurity | Ion Chromatography | Separation and conductivity detection of sulfate ions in aqueous extract of the sample. |
| Residual Benzyl Chloride | GC-MS | Detection and quantification of benzyl chloride by gas chromatography coupled with mass spectrometry. |
| Optical Rotation | [alpha]D Measurement | Determination of specific optical rotation using a polarimeter at 20-25 C and sodium D-line (589 nm) to confirm chiral integrity. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition determination by controlled heating of capillary-packed sample under standard conditions. |
| Loss on Drying | Gravimetric Analysis | Weight loss measurement after drying at 105 C under vacuum or nitrogen for specified time. |
| pH of Aqueous Solution | Potentiometric pH Measurement | pH determination of a defined suspension or solution using calibrated pH electrode and buffer standards. |
Technical Specifications of H-DL-LEU-OBZL P-TOSYLATE
| Test Item | Specification |
|---|---|
| Appearance | White powder |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 142-146°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| 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 H-DL-LEU-OBZL P-TOSYLATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of H-DL-LEU-OBZL P-TOSYLATE
Packaging of H-DL-LEU-OBZL P-TOSYLATE
Industrial H-DL-LEU-OBZL P-TOSYLATE 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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