Ethynylestradiol 17-Acetate | 17-Ethynylestra-1,3,5(10)-triene-3,17-diol 17-Acetate | 19-Nor-17a-pregna-1,3,5(10)-trien-20-yne-3,17-diol 17-Acetate | 19-Nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17-diol 17-Acetate | (17α)-19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol 17-Acetate | (17a)-19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol 17-Acetate |
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