Polymyxin B2 

Polymyxin B2 is a polypeptide antibiotic that has antibacterial activity, particularly against gram-negative bacteria. Polymyxin B2 kills the bacteria by binding to lipopolysaccharide molecules on the bacterial cell membrane, disrupting the integrity of the cell membrane and causing the cell contents to leak. Polymyxin B2 can be used in antibiotic development and treatment of drug-resistant strains^[1].

1189.45

C₅₅H₉₆N₁₆O₁₃

34503-87-2

O=C(N[C@H](C(N[C@@](C(N[C@H](C(N[C@@]1([H])[C@H](O)C)=O)CCN)=O)([H])CCN)=O)CC(C)C)[C@H](NC([C@@H](NC([C@@](CCNC1=O)([H])NC([C@H](CCN)NC([C@H]([C@H](O)C)NC([C@H](CCN)NC(CCCCC(C)C)=O)=O)=O)=O)=O)CCN)=O)CC2=CC=CC=C2

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Meng M, et al. Simultaneous quantitation of polymyxin B1, polymyxin B2 and polymyxin B1-1 in human plasma and treated human urine using solid phase extraction and liquid chromatography–tandem mass spectrometry[J]. Journal of Chromatography B, 2016, 1012: 23-36.  [Content Brief]