Appearance:White crystalline powder
IR:Conforms to structure
Titration:100.52%(iodometric titration)
Specific Rotation [α]20/D:+20.741°（c=0,H20)
Heavy Metals:0.0003%(as Pb)
Residue on Ignition:0.01%(as sulfate)
Trace Analysis:
Fe measure:＜0.0002%
As measure:＜0.0003%
Cu measure:＜0.0005%
Pb measure:＜0.0002%