Synonyms: Pregna-5,16-dien-20-one,3b-hydroxy- (6CI,8CI);(-)-Pregnadienolone; 16-Dehydropregnenolone; 16-Dehydropregnolone; 3b-Hydroxy-20-oxopregna-5,16-diene;3b-Hydroxy-D5,16-pregnadien-20-one; 3b-Hydroxypregna-5,16-dien-20-one;NSC 15467; Pregna-5,16-dien-3b-ol-20-one; Pregnadienolone; D16-Pregnenolone