Category:
Amino Acids and Derivatives
CAS NO:
74-79-3
Standard:
USP,BP,
|
Item |
Spec |
|
Appearance |
White or almost white crystalline powder or colorless crystals, freely soluble in water |
|
Identification |
As per USP |
|
Specific rotation |
+26.3°~+27.7° |
|
Loss on drying |
≤0.5% |
|
Residue on ignition |
≤0.3% |
|
Chloride |
≤0.05% |
|
Sulphate |
≤0.03% |
|
Iron |
≤0.003% |
|
Heavy metals(Pb) |
≤15ppm |
|
Chromatographic purity |
As per USP31 |
|
Organic volatile impurities |
As per USP31 |
|
Residual solvents |
As per USP31 |
|
Assay |
98.5%~101.5% |