Superiority:
Appearance White or almost white crystalline powder
Purity(HPLC,basis on drying) 97.0~102.0%
Identification (A,B) A:IR B:UV
Specific Rotation +72°~+80°
Loss on drying 0.5% max
Residue on ignition 0.2% max
Chromatographic purity Any individual impurity 1.0% max
Total impurities 2.0% max
Organic volatile substances Methanol ≤3000ppm
Ethyl acetate ≤5000ppm
Acetone ≤5000ppm
DMF ≤880ppm
Chloroform ≤60ppm
Details:
Appearance White or almost white crystalline powder
Purity(HPLC,basis on drying) 97.0~102.0%
Identification (A,B) A:IR B:UV
Specific Rotation +72°~+80°
Loss on drying 0.5% max
Residue on ignition 0.2% max
Chromatographic purity Any individual impurity 1.0% max
Total impurities 2.0% max
Organic volatile substances Methanol ≤3000ppm
Ethyl acetate ≤5000ppm
Acetone ≤5000ppm
DMF ≤880ppm
Chloroform ≤60ppm