Oxytetracycline Oxytetracycline HCL 2058-46-0
Appearance Yellow crystalline powder Identification According to USP37 Specific optical rotation -188? ~-200? Solubility Freely soluble in water sparingly soluble in ethanol,solutions in water become turbid on standing to the precipitation of Oxytetracycline. PH 2.3--2.9 PH Value 270--290 Heavy metals Not more than 50 Light absorbing impurities A(0.2%,1cm,430nm)<50 A(1%,1cm,490nm)<0.20 Related substances Content of impurity peak meets the requirement Sulfated ASH Not more than 0.5% Water Not more than 2.0% Assay(by HPLC) 95.0%--102.0% |
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