NINGBO HI-TECH ZONE YEFENG NEW MATERIALS TECHNOLOGY CO.,LTD.
Room 1807,95 business Mansion,No.598 Jiangnan Road, Ningbo (315041) China,
TEL: +86-574-83888578
FAX: +86-574-83888577
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EMAIL: robinson@yefengtech.com
CAS No. 51-35-4
Other Names 4-Hydroxyproline
MF C5H9NO3
EINECS No. 200-091-9
Place of Origin Zhejiang, China (Mainland)
Type Vitamins, Amino Acids and Coenzymes
we suplly Trans-4-Hydroxy-L-proline,4-Hydroxyproline ,3-hydroxy-L-proline in competitive price
Items | Specification(AJI92) |
Appearance | White crystals |
Content(%) | 98.5%~101.5% |
Specific rotation( °) | -74.0~ -77.0 |
Transmittance | ≥95% |
Ammonium salt(%) | ≤0.02 |
Heavy metal(Pb%) | ≤0.001 |
PH | 5.0~6.0 |
Loss on drying(%) | ≤0.2 |
Residue on ignition(%) | ≤0.1 |
Arsenic(As2O3%) | ≤0.0001 |
Chloride(Cl%) | ≤0.02 |
Sulfate(SO4%) | ≤0.02 |
Iron(Fe%) | ≤0.001 |