methenmadinone methenmadinone methenmadinone, also known as deacetylsuperlutin or as 16-methylene-6-dehydro-17α-hydroxyprogesterone, is a pregnane steroid which was never marketed. it is a parent compound of methenmadinone acetate (the c17α acetate ester), melengestrol (the c6 methyl derivative), and chlormethenmadinone (the c6 chloro derivative). methenmadinoneclinical dataother namesdeacetylsuperlutin; 16-methylene-6-dehydro-17α-hydroxyprogesterone; 16-methylenepregna-4,6-diene-3,20-dione; 16-methyl-4,6,16-pregnatriene-3,20-dionedrug classprogestogen; progestinidentifiers iupac name (8s,9s,10r,13s,14s,17s)-17-acetyl-10,13-dimethyl-16-methylidene-2,8,9,11,12,14,15,17-octahydro-1h-cyclopentaphenanthren-3-one cas number6723-96-2pubchem cid22809370chemical and physical dataformulac22h28o2molar mass324.464 g·mol−13d model (jsmol)interactive image smiles cc(=o)1c(=c)c21(cc32c=cc4=cc(=o)cc34c)c inchi inchi=1s/c22h28o2/c1-13-11-19-17-6-5-15-12-16(24)7-9-21(15,3)18(17)8-10-22(19,4)20(13)14(2)23/h5-6,12,17-20h,1,7-11h2,2-4h3/t17-,18+,19+,20-,21+,22+/m1/s1key:slrudsfurbmiqt-hqzkggbdsa-n