Colistin III

1271111-95-5

(S)-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)-12-((S)-sec-butyl)-3-((R)-1-hydroxyethyl)-15-isobutyl-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; Polymyxin E1, 7-L-isoleucine; 7-L-Isoleucinepolymyxin E1; 7-Isoleucine-polymyxin E1;