Synonyms: 2-Oxaestra-4,9,11-trien-3-one,17-(acetyloxy)-, (17b)-; 2-Oxaestra-4,9,11-trien-3-one, 17b-hydroxy-, acetate (8CI);Cyclopenta[5,6]naphtho[1,2-c]pyran-2(4H)-one,7-(acetyloxy)-6a,7,8,9,9a,9b,10,11-octahydro-6a-methyl-, [6aS-(6aa,7a,9ab,9ba)]-; RU 2532