azamulin azamulin azamulin is a pleuromutilin antibiotic. as of 2021, it is not marketed in the us or europe. azamulinclinical dataatc codenoneidentifiers iupac name (1s,2r,3s,4r,6r,7r,8r,14r)-4-ethyl-3-hydroxy-2,4,7,14-tetramethyl-9-oxotricyclotetradec-6-yl acetate cas number76530-44-4pubchem cid16072188chemspider17231671unii875aq866x1chemblchembl2103760chemical and physical dataformulac24h38n4o4smolar mass478.65 g·mol−13d model (jsmol)interactive image smiles cc1(c(2((cc3(2c(=o)cc3)(1o)c)c)c)oc(=o)csc4nc(n4)n)c inchi inchi=1s/c24h38n4o4s/c1-6-22(4)11-16(32-17(30)12-33-21-26-20(25)27-28-21)23(5)13(2)7-9-24(14(3)19(22)31)10-8-15(29)18(23)24/h13-14,16,18-19,31h,6-12h2,1-5h3,(h3,25,26,27,28)/t13-,14+,16-,18+,19+,22-,23+,24+/m1/s1key:fmhqjxgmlmsmlc-wbuyaqkgsa-n in pharmacological studies, the substance is used as an inhibitor of the liver enzymes cyp3a4 and cyp3a5.