has functional parent peptide antibiotic organic sodium salt polymyxin colistin B sodium methanesulfonate 1734.522 1735.79200 C57H103N16Na5O28S5 CHEBI:59664 Colistin B in which each of the primary amino groups is converted to the corresponding aminomethanesulfonic acid sodium salt, commonly by treatment with formaldehyde followed by sodium bisulfite. InChI=1S/C57H108N16O28S5.5Na/c1-32(2)11-9-10-12-45(76)64-37(13-19-58-27-102(87,88)89)52(81)73-47(36(8)75)57(86)69-40(16-22-61-30-105(96,97)98)49(78)67-42-18-24-63-56(85)46(35(7)74)72-53(82)41(17-23-62-31-106(99,100)101)66-48(77)38(14-20-59-28-103(90,91)92)68-54(83)43(25-33(3)4)71-55(84)44(26-34(5)6)70-51(80)39(65-50(42)79)15-21-60-29-104(93,94)95;;;;;/h32-44,46-47,58-62,74-75H,9-31H2,1-8H3,(H,63,85)(H,64,76)(H,65,79)(H,66,77)(H,67,78)(H,68,83)(H,69,86)(H,70,80)(H,71,84)(H,72,82)(H,73,81)(H,87,88,89)(H,90,91,92)(H,93,94,95)(H,96,97,98)(H,99,100,101);;;;;/q;5*+1/p-5/t35-,36-,37+,38+,39+,40+,41+,42+,43+,44-,46+,47+;;;;;/m1...../s1 PMID:16931410 WZLRYLCDDODFHL-WSNMVEPOSA-I [Na+].[Na+].[Na+].[Na+].[Na+].CC(C)CCCCC(=O)N[C@@H](CCNCS([O-])(=O)=O)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCNCS([O-])(=O)=O)C(=O)N[C@H]1CCNC(=O)[C@@H](NC(=O)[C@H](CCNCS([O-])(=O)=O)NC(=O)[C@H](CCNCS([O-])(=O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H](CC(C)C)NC(=O)[C@H](CCNCS([O-])(=O)=O)NC1=O)[C@@H](C)O chebi_ontology colistin B sulfomethate sodium pentasodium {[(3S)-4-{[(3S,6S,9S,12S,15R,18S,21S)-3-[(1R)-1-hydroxyethyl]-12,15-bis(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-6,9,18-tris{2-[(sulfonatomethyl)amino]ethyl}-1,4,7,10,13,16,19-heptaazacyclotricosan-21-yl]amino}-3-{[(2S,3R)-3-hydroxy-2-({(2S)-2-[(6-methylheptanoyl)amino]-4-[(sulfonatomethyl)amino]butanoyl}amino)butanoyl]amino}-4-oxobutyl]amino}methanesulfonate polymyxin E2 sodium methanesulfonate polymyxin E2 sulfomethate sodium colistin B