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(17beta)-17-ethynyl-17-hydroxyestr-4-en-3-one - (17beta)-17-ethynyl-3-methoxyestra-1,3,5(10)-trien-17-ol (1:1)

(17beta)-17-ethynyl-17-hydroxyestr-4-en-3-one - (17beta)-17-ethynyl-3-methoxyestra-1,3,5(10)-trien-17-ol (1:1)