Synonyms: (8r,9s,13s,14s,17s)-13-methyl-6,7,8,9,11,12,13,14,15,16-decahydrospiro[cyclopenta[a]phenanthrene-17,2'-oxiran]-3-ol;NSC89841;AC1L61MD;KST-1A1915;AR-1A7253;NSC-89841;(8R,9S,13S,14S,17S)-13-methylspiro[7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-17,2'-oxirane]-3-ol