| ≥1 piece |
Appearance White to off-white crystalline powder White crystalline Powder
Assay ( dried subatance) 98.0~102% 99.1%
PH ( 1% solution ) 5-8 7.6
Specific Rotaion(|á)D20 (+)84.0 (+)87.5 85.4
Water 2.00% 0.2%
Heavy metals(as Pb) 10ppm <7ppm
Methanol 0.1% 0.03%Arsenic(as As) ?ü3ppm <1ppm
Ignited Residue 0.7% 0.05
Related Substances Passes test Passes test
Hydrolysis Products Passes test Passes test