Synonyms:
desoxy-tetraene(5-st) ; 17-acetyl-10,13-dimethyl-6,7,8,10,12,13,14,15-octahydro-cyclopenta[a]phenanthren-3-one ; 1,4,9(11),16-tetraenepregna-3,20-dione ; 17-acetyl-10,13-dimethyl-6,7,8,10,12,13,14,15octahydro-cyclopenta[a]phenathren-3 ; methyl-tetraene matter ; 17-acetyl-10,13-dimethyl-6,7,8,10,12,13,14,15-octahydrocyclopenta[a]phenathren-3-one ; pregan-1,4,9(11)16-tetraene-3,20-dione ; (5st)tetraene methyl