Cloperastine hydrochloride

Appearance: White or off white crystalline powder;
This product is soluble in water, methanol, N, N-dimethylformamide, chloroform, ethanol, and glacial acetic acid; Dissolve in acetic anhydride; Slightly soluble in acetone.
Melting point: 149 ℃~153 ℃
Clarity and color of the solution: The solution should be clear and colorless;
Dry weight loss: not exceeding 0.5%
Regarding substances: The maximum single impurity shall not exceed 1.0%; The total impurities shall not exceed 0.5%;
Burning residue: not exceeding 0.1%;
Heavy metals: not exceeding 20ppm;
Content: should not be less than 99.0%.