Shelf life (days): 1460.0
Formulation: A crystalline solid
Formal Name: N-((S)-4-amino-1-(((2S,3R)-1-(((S)-4-amino-1-oxo-1-(((3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-15-benzyl-12-((S)-sec-butyl)-3-((R)-1-hydroxyethyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptaazacyclotricosan-21-yl)amino)butan-2-yl)amino)-3-hydroxy-1-oxobutan-2-yl)amino)-1-oxobutan-2-yl)-6-methyloctanamide, monosulfate
Purity: ≥90%
Formula Markup: C56H98N16O13 / H2SO4
Formula Weight: 1301.55684
Notes: Polymyxin B1 isoleucine differs from polymyxin B1 by having isoleucine rather than leucine as a component of the cyclic peptide. Polymyxin B1 isoleucine is comparable to other B polymyxins in its ability to kill P. aeruginosa, A. baumannii, and K. pneumoniae isolates.{22082} Its relative pharmacokinetics and nephrotoxicity have not been examined.
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