Synonyms: 11-beta-Methyl-17-alpha-ethinylestradiol;11-beta-Methyl-19-nor-17-alpha-pregna-1,3,5(10)-trien-20-yne-3,17-diol;19-Nor-17-alpha-pregna-1,3,5(10)-trien-20-yne-3,17-diol, 11-beta-methyl-;AC1L25FR;13655-95-3;LS-97366;(8S,9S,11S,13S,14S,17R)-17-ethynyl-11,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol