Synonyms: C(14a)-Homo-18-nor-15-oxaandrosta-7,13(17)-diene-4-carboxylicacid, 4-methyl-, (4b,5a)-;1H-Naphtho[1',2':5,6]cyclohepta[1,2-b]furan-4-carboxylic acid,2,3,4,4a,5,7,7a,9,11,12,12a,12b-dodecahydro-4,12b-dimethyl-, [4S-(4a,4ab,7ab,12ab,12ba)]-; Verticoic acid