Colistin Sulfate Description: Appearance: White or almost white hygroscopic powder. Odor: Stinkless Solubility: Freely soluble in water. Slightly soluble in methanol and ethanol. Insoluble in acetone and ether. Stable under PH value 3-7.5. Usage: Colistin sulphate is an antibiotic of basic polypeptides composed by various amino acids and fatty acids. It has strong antibiotic effect against intestinal diseases caused by gram-negative bacilli. It is used as feed additive and also has some growth promoting effect. Specification: The potency is not less than 19,000 I.U. per milligram, calculated with reference to the dried substance. Storage: To be stored away from light in a cool and dry place. Packaging: 400bou/Carton /Fabric Barrel Remarks: Colistin Sulfate 1 ug = 30 units(Potency)