D-TYROSINE-OBZL P-TOSYLATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 97984-63-9 |
| Product name | D-TYROSINE-OBZL P-TOSYLATE |
| 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) |
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Documents We Provide for D-TYROSINE-OBZL P-TOSYLATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk D-TYROSINE-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 D-TYROSINE-OBZL P-TOSYLATE
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Chiral intermediate for synthesizing L-DOPA, peptide-based drugs, and β-blockers | Used as a protected form of D-tyrosine to provide controlled protection of the amino and phenolic hydroxyl groups in solid-phase peptide synthesis (SPPS) or solution-phase coupling reactions; the p-toluenesulfonate salt form enhances crystallinity and stability, facilitating purification and storage |
| Organic Synthesis | Chiral building block or resolving agent in asymmetric synthesis | Applied in enzymatic kinetic resolution, preparation of chiral chromatographic stationary phases, or as a chiral auxiliary to control stereoselectivity in reactions |
| Biochemical Research | Labeled probe or modification precursor for protein/peptide structure and function studies | Used for site-specific incorporation of D-tyrosine residues to investigate conformational effects and proteolytic stability of D-amino acids in peptide chains |
Manufacturing Quality Control of D-TYROSINE-OBZL P-TOSYLATE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase HPLC with UV detection at 210-230 nm based on peak area comparison against reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities (e.g., D-tyrosine, benzyl alcohol, p-toluenesulfonic acid) using gradient HPLC-UV. |
| Water Content | Karl Fischer Titration | Measures trace water by volumetric or coulometric titration using iodine-sulfur dioxide reaction in pyridine/methanol medium. |
| Residual Solvents | GC-FID | Quantifies residual solvents (e.g., methanol, ethyl acetate, toluene) using gas chromatography with flame ionization detection. |
| Heavy Metals | ICP-OES | Determines total heavy metal content (Pb, Cd, Hg, As, Ni) after acid digestion by measuring atomic emission intensities. |
| Chloride Impurity | Ion Chromatography | Separates and quantifies chloride ions using suppressed conductivity detection after aqueous extraction. |
| Sulfate Impurity | Ion Chromatography | Separates and quantifies sulfate ions using suppressed conductivity detection after aqueous extraction. |
| Optical Rotation | [alpha]D Measurement | Measures specific rotation at 589 nm using sodium D-line to confirm chiral integrity and enantiomeric identity. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range of solid-to-liquid transition using calibrated capillary method per USP <741>. |
| pH of Aqueous Suspension | pH Meter | Measures pH of a defined suspension (e.g., 1% w/v in water) using calibrated pH electrode to assess acidic/basic impurity load. |
| Loss on Drying | Gravimetric Heating | Determines volatile content by weight loss after heating at 105 C for 2 hours under controlled atmospheric conditions. |
| Residue on Ignition | Gravimetric Ashing | Measures inorganic residue mass after ignition at 600 C for 1 hour, indicating non-volatile inorganic impurities. |
Technical Specifications of D-TYROSINE-OBZL P-TOSYLATE
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 148°C - 152°C |
| Optical Rotation | +10.5° to +11.5° (c=1, in 1M HCl) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
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 D-TYROSINE-OBZL P-TOSYLATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of D-TYROSINE-OBZL P-TOSYLATE
Packaging of D-TYROSINE-OBZL P-TOSYLATE
Industrial D-TYROSINE-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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