Colistin Sulfate [1264-72-8]

Colistin Sulfate [1264-72-8] is used across pharmaceutical, biochemical, and research settings as an antibiotic agent. Its molecular formula is C52H98N16O13. H2SO4, with a molecular weight of 1253.51. This compound has a Melting Point of ≤ 23.0%. As a EP Grade product, it presents as a white to almost white powder, with a pH range of 4.0 - 6.0. It is freely soluble in water, slightly soluble in ethanol (96%), practically insoluble in acetone trichloromethane or diethyl ether. The potency (dried basis) is ≥ 19000 IU/mg, with a sulfate content of 16 - 18%, a sulfated ash of ≤ 1.0%, and a loss on drying of ≤ 3.5%. The specific optical rotation ranges from -63 to -73°. Store Colistin Sulfate at 2 to 8 °C for optimal preservation.

• CAS Number: 1264-72-8
• Categories: Antibiotics Bioactive Small Molecules
• Melting Point: ≤ 23.0%
• Molecular Formula: C52H98N16O13 . H2SO4
• Grade: EP Grade
• Harmonised Tariff Code: 2941900000
• Appearance: White to almost white powder
• Molecular Weight: 1253.51