peptide antibiotic polymyxin colistin A 1168.766 1169.46050 4,10-anhydro{N-[(6R)-6-methyloctanoyl]-L-2,4-diaminobutanoyl-L-threonyl-L-2,4-diaminobutanoyl-L-2,4-diaminobutanoyl-L-2,4-diaminobutanoyl-D-leucyl-L-leucyl-L-2,4-diaminobutanoyl-L-2,4-diaminobutanoyl-L-threonine} A polymyxin having a (6R)-6-methyloctanoyl group at the amino terminus. Beilstein:8609559 C53H100N16O13 CAS:7722-44-3 CC[C@@H](C)CCCCC(=O)N[C@@H](CCN)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCN)C(=O)N[C@H]1CCNC(=O)[C@@H](NC(=O)[C@H](CCN)NC(=O)[C@H](CCN)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H](CC(C)C)NC(=O)[C@H](CCN)NC1=O)[C@@H](C)O CHEBI:59064 Colistin A Colistin IV InChI=1S/C53H100N16O13/c1-9-30(6)12-10-11-13-41(72)60-33(14-20-54)48(77)69-43(32(8)71)53(82)65-36(17-23-57)45(74)64-38-19-25-59-52(81)42(31(7)70)68-49(78)37(18-24-58)62-44(73)34(15-21-55)63-50(79)39(26-28(2)3)67-51(80)40(27-29(4)5)66-46(75)35(16-22-56)61-47(38)76/h28-40,42-43,70-71H,9-27,54-58H2,1-8H3,(H,59,81)(H,60,72)(H,61,76)(H,62,73)(H,63,79)(H,64,74)(H,65,82)(H,66,75)(H,67,80)(H,68,78)(H,69,77)/t30-,31-,32-,33+,34+,35+,36+,37+,38+,39+,40-,42+,43+/m1/s1 PMID:13058849 PMID:1650428 PMID:16931410 PMID:18625681 PMID:25249467 PMID:25609230 PMID:25832483 Polymixin E1 Polymyxin E1 Reaxys:8609559 XDJYMJULXQKGMM-RVYUQJQSSA-N chebi_ontology