narasin narasin narasin is a coccidiostat and antibacterial agent. it is a derivative of salinomycin with an additional methyl group. narasin is produced by fermentation of a strain of streptomyces aureofaciens. narasinclinical dataother names(4s)-4-methyl-salinomycinahfs/drugs.cominternational drug namesatcvet codeqp51ah04 (who) identifiers iupac name (2r)-2--15-hydroxy-2,10,12-trimethyl-1,6,8-trioxadispiropentadec-13-en-9-yl]-2-hydroxy-1,3-dimethyl-4-oxoheptyl]-3,5-dimethyl-2-tetrahydropyranyl]butanoic acid cas number55134-13-9 ypubchem cid65452chemspider58911uniidzy9vu539pcomptox dashboard (epa)dtxsid2046707 echa infocard100.122.892 chemical and physical dataformulac43h72o11molar mass765.038 g·mol−13d model (jsmol)interactive image smiles o=c((c)(o)(c)5()o((cc)c(o)=o)()(c)c5c)(cc)1()o2(o3(cc(4()o(c)(o)(cc)cc4)(c)o3)(o)c=c2)(c)c1c inchi inchi=1s/c43h72o11/c1-12-30(35(46)27(8)34(45)28(9)36-23(4)21-24(5)37(51-36)31(13-2)39(47)48)38-25(6)22-26(7)42(52-38)18-15-32(44)43(54-42)20-19-40(11,53-43)33-16-17-41(49,14-3)29(10)50-33/h15,18,23-34,36-38,44-45,49h,12-14,16-17,19-22h2,1-11h3,(h,47,48)/t23-,24-,25-,26+,27-,28-,29-,30-,31+,32+,33+,34+,36+,37+,38-,40-,41+,42-,43-/m0/s1key:vhkxxvvrrdycik-cwcpjsedsa-n (verify)