(3S,8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,17-diol;Ethynodiol; 3?-Hydroxynorethisterone; 17?-Ethynylestr-4-ene-3?,17?-diol
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