Polymyxin E1 sulfate

Polymyxin E1 (Colistin A) is a cationic lipopeptide antibiotic originally isolated from Bacillus polymyxa. It is used in research for its potent in vitro activity against Gram-negative pathogens like Pseudomonas aeruginosa (MIC 2 μg/mL) and Escherichia coli (MIC 0.8 μg/mL), supporting studies in antimicrobial resistance and mechanism of action.

Product Specifications

CAS Number

207990-63-4

Smiles

NCC[C@@H] (C (N[C@H]1CCNC ([C@@] ([C@H] (O) C) ([H]) NC ([C@@H] (NC ([C@@H] (NC ([C@@H] (NC ([C@H] (NC ([C@@H] (NC1=O) CCN) =O) CC (C) C) =O) CC (C) C) =O) CCN) =O) CCN) =O) =O) =O) NC ([C@H] ([C@H] (O) C) NC ([C@@H] (NC (CCCC[C@@H] (C) CC) =O) CCN) =O) =O.O=S (O) (O) =O