Appearance White or almost white micronized powder
Identification IR, UV
Assay 97~103%
Melting point 153~157℃
Specific rotation +101°~+105°
Organic volatile impurities Meets the requirement
Residue on ignition 0.2% max
Loss on drying 1.0% max
Residue solvents Benzene: 2ppm max
Methanol: 3000ppm max
Particle size 100% pass 20microns seive