Basic Inforamtion
- Product Name: L-Hydroxyproline
- CAS NO.：51-35-4
- MF: C5H9NO3
- MW: 131.13
- Melting Point: 273 °C (dec.)(lit.)
- Boiling Point: 242.42°C (rough estimate)
- Odor: Oderless
- Store Condition: Store below +30°C
Specification of L-Hydroxyproline
| Test item | Standard |
| Assay | 98.5%-101% |
| Appearance | white crystals or crystalline powder |
| Transmittance | ≥95% |
| Specific rotation[α]D25 | -74.0°~-77.0° |
| PH | 5.0-6.5 |
| Loss on drying | ≤0.20% |
| Residue on ignition | ≤0.10% |
| Chloride(Cl) | ≤0.02% |
| Sulfate(S04) | ≤0.02% |
| Ammonium salt | ≤0.02% |
| Ferric salt | ≤10ppm |
| Arsenic salt (as measured by AS) | ≤1ppm |
| Heavy metals (as measured by Pb) | ≤10ppm |
Why Choose Us
Quality Control
QC team members are all qualified and receive regular training. A professional QA team ensures quality products and a sound documentation system is in place to support audits.
Supply ability
We maintain safety stock for all high-demand products, enabling immediate shipment arrangement upon order confirmation.
Fast Delivery
For products in stock, we can deliver immediately after receiving your payment. For synthetic chemicals, we will provide delivery time when quoting.
Delivery
For in-stock products, we arrange the shipment immediately after receiving your order and payment.
Optional shipping methods: air freight, sea freight, or express courier (DHL, FedEx, UPS).
Samples and small quantity orders can be shipped via express including but limited to DHL, FedEx or UPS.
Nice Packaging
We offer flexible packaging from 1kg to 25kg bottles or bags
All packaging is carefully designed to ensure optimal product protection, guaranteeing safe delivery in perfect condition.
Warehouse
Professional warehouse management system: ensure the storage conditon for chemical products.
Factory
The factory follows a scheduled maintenance program to guarantee stable manufacturing operations and compliance with industry safety standards
10,000 sqm total facility area
5,000 sqm chemical production workshop
2,200 MT/year total production capacity
Company Profile
Shanghai Joy Biotech Ltd. is a professional supplier of dietary supplements (such as L-Hydroxyproline), pharmaceutical raw materials, cosmetic ingredients, and related products. Our team comprises doctors, master's degree holders, and bachelor's degree holders specializing in pharmaceuticals, chemistry, and biology.
We provide professional services in export and import of chemical products, as well as CMO/CDMO (Contract Manufacturing Organization/Contract Development and Manufacturing Organization) solutions.
Our Certificates
Our certificates are complete and trustworthy
