Synonyms: | 2-hydroxyethynylestradiol;(17a)-19-Norpregna-1,3,5(10)-trien-20-yne-2,3,17-triol;17a-Ethynyl-2-hydroxyestradiol;19-Nor-17a-pregna-1,3,5(10)-trien-20-yne-2,3,17-triol;(17α)-19-Norpregna-1,3,5(10)-trien-20-yne-2,3,17-triol;17α-Ethynyl-2-hydroxyestradiol;19-Nor-17α-pregna-1,3,5(10)-trien-20-yne-2,3,17-triol;Ethinylestradiol 2-Hydroxy Impurity |