Polymyxin B1

Chemical Name: N-[(S)-4-Amino-1-{[(2S,3R)-1-{[(S)-4-amino-1-oxo-1-({(3S,6S,9S,12S,15S,18S,21S)-6,9,18-tris(2-aminoethyl)-15-benzyl-3-[(R)-1-hydroxyethyl]-12-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 (as per USP)

Smile: CC[C@H](C)CCCCC(N[C@@H](CCN)C(N[C@@H]([C@H](O)C)C(N[C@@H](CCN)C(N[C@@H]1C(N[C@@H](CCN)C(N[C@H](CC2=CC=CC=C2)C(N[C@@H](CC(C)C)C(N[C@@H](CCN)C(N[C@@H](CCN)C(N[C@@H]([C@H](O)C)C(NCC1)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O