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CAS NO.71-00-1
Supply Amino acid L-Histidine CAS 71-00-1 L-Histidine Histidine Powder | ||||||
Product Name: | L-Histidine |
CAS No: | 71-00-1 |
MF: | C6H9N3O2 |
Appearance: | White crystalline Powder |
Grade Standard: | Food Grade, Medicine Grade |
Type: | Vitamins, Amino Acids and Coenzymes |
Items | Specification | Result |
Appearance | White crystals or crystalline powder | Conforms |
Identification | Concordant with the reference spectrum | Conforms |
Assay | 98.5% ~ 101.5% | 99.5% |
pH | 7.0 ~ 8.5 | 7.9 |
Specific rotation | +12.6° ~ +14.0° | 13.3° |
Chloride(Cl) | ≤0.05% | 0.04% |
Sulphate(SO4) | ≤0.03% | 0.02% |
Iron(Fe) | ≤30ppm | 28ppm |
Heavy metals(Pb) | ≤15ppm | 13ppm |
Loss on drying | ≤0.20% | 0.20% |
Residue on ignition | ≤0.40% | 0.35% |
Chromatographic purity | Conforms | Conforms |