Synonyms: 1H-Indeno[5,4-a]anthracene,benzo[2,3]pregn-2-ene deriv.; 1H-Indeno[5,4-a]anthracene,1-ethyl-2,3,3a,3b,4,5,5a,6,11,11a,11b,12,13,13a-tetradecahydro-11a,13a-dimethyl-,[1S-(1a,3ab,3ba,11aa,11bb,13aa)]-; [1S-(1a,3ab,3ba,11aa,11bb,13aa)]-1-Ethyl-2,3,3a,3b,4,5,5a,6,11,11a,11b,12,13,13a-tetradecahydro-11a,13-dimethyl-1H-indeno[5,4-a]anthracene