Product name |
L-Histidine |
Brand name |
Chenming |
Country of origin |
China |
Manufacturer |
Luojiang Chenming biological Co.,Ltd |
Appearance |
white crystalline or crystals powder,slightly bitter taste |
CAS No. |
71-00-1 |
Purity |
99% |
Grade standard |
Feed grade,Food grade,Medicine grade |
Type |
Vitamins, Amino acids and Coenzymes |
Usage |
Pharmaceutical intermediates/ingredient/raw material |
MW |
155.1546 |
MF |
C6H9N3O2 |
Certificate |
AJI;USP;EP;COA; ISO |
Shelf Life |
24 months |
CERTIFICATE OF ANALYSIS |
||
Tests |
Limits |
Test results |
Description |
White crystals or crystalline powder |
conforms |
assay |
98.5~101.5% |
99.0% |
Specific rotation[a]D25 |
+12.6°~+14.0° |
+12.7° |
Chloride(Cl) |
≤0.05% |
<0.05% |
Sulfate(SO4) |
≤0.03% |
<0.03% |
Iron(Fe) |
≤30ppm |
<30ppm |
Heavy metals(Pb) |
≤15ppm |
<15ppm |
Loss on drying |
≤0.20% |
0.16% |
Residue on ignition |
≤0.40% |
0.087% |
Chromatographic purity |
conforms |
conforms |
Organic volatile impurities |
meets the requirements |
conforms |
PH |
7.0-8.5 |
7.85 |