Androsta-1,4-diene-3,17-dione English Synonyms: delta-1,4-androstadiene-3,17-dione;(8R,9S,10R,13S,14S)-10,13-DIMETHYL- ... DECAHYDRO-6H-CYCLOPENTA[A]PHENANTHRENE-3,17-DIONE;1-DEHYDROANDROSTENEDIONE;1,4-ANDROSTADIEN-3,17-DIONE;1,4-ANDROSTADIENE-3,17-DIONE CAS NO.: 897 ... , etc. 1, (5 alpha) Androstene -3,17 diol 1,(5 alpha)- Androstenedione 1,4- Androstadiene 3B, 17B dione 1,4-Androstadiene-3,17, diol ...