Appearance:White or almost white crystalline powder, without stink. Taste bitter.
Solubility:Almost insoluble in water; Soluble in methanol and in glacial acetic acid; Slightly soluble in chloroform.
Identification:EP 6.0
Specific Optical Rotation:+59.5°
Chloride:≤ 0.02%
Sulfate:≤ 0.05%
Arsenic Salt:≤ 2ppm
Melting Point:200.9-202.7℃
Loss on Drying:0.04%
Lazing Residue:0.08%
Heavy Mental:≤ 10ppm
Assay (Titration):99.3%
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