Chemical Properties: This product is a white crystalline or crystalline powder, with no odor and bitter taste, and it produces a paralysis after use, which is easy to soluble in water, difficult to soluble in ethanol, slightly soluble in chloroform, and almost insoluble in diethyl ether.
Quality Standard: EP/USP
Appearance: White crystalline powder or colorless crystal
Melting point: 154.0-158.0℃
Acidity: PH: 5.0-6.5