Molecular Formula: C6H9N3O2·HCl·H2O CAS:56-89-3 Properties: hite crystal and white crystalline powder. Odorless, slightly acidity, bitter. Melted(after drying) and decomposed at 250℃. Stability. Acidity in aqueous(pH value is 3.5-4.5). Soluble in water(39g/100mL, 24℃). Solubility greater than L-Histidine in water aqueous. Insoluble in ethanol and ether. Infant’s essential amino acid. Usage: nutritional supplements Quality Standard: AJI92
Items |
standard |
solubility (%) |
98.0 min |
specific rotation (°) |
+8.9—+9.5 |
chloride (%) |
16.66-17.08 |
ammonium salt (%) |
0.02 max |
sulfate (%) |
0.02 max |
Iron (ppm) |
10ppm max |
heavy metal (ppm) |
10ppm max |
Arsenic (ppm) |
1ppm max |
other amino acid |
Not detected by TLC |
drying shrinkage (%) |
0.20 max |
ignition residue (%) |
0.10 max |
content (%) |
99.0 -101.0% |
acidity(pH value) |
3.5-4.5 |
Packaging: 25KG/barrel Transportation: avoid sun and rain, be transported as general chemicals but with no toxic, hazard materials. Storage: stored in a dry clean dark environment, and not be mixed with toxic substances to avoid contamination. Shelf life: two years |