Project Description

Colistin SulfateColistin Sulfate
CAS No.1264-72-8
Molecular Formula:2(C52H98N16O13).5(H2SO4)
Molecular Weight:2801.27

Synonyms: Polymyxin E. Sulfate; Belcomycine; Colomycin;
Appearance: Off-White Solid
Melting Point: >202°C (dec.)
Solubility: Water (Sparingly)
Applications: Cyclic polypeptide antibiotic produced by Bacillus polymyxa. Complex mixture of at least 30 components, primarily colistins A and B.
[α]D= -65° (c= 1, Water)
LOD: 3% DAB= α,γ-diaminobutyric acid
Heavy Metals: 20ppm Colistin A R= (+)-6-methyloctanoyl
Arsenic Content: 2ppm/g Colistin B R= 6-methylheptanoyl Sulfate: 16-18%

Biological Potency (dry basis): 19600U/mg