NCIt related terms : (17alpha)-3-Methoxy-19-norpregna-1,3,5(10)-trien-20-yn-17-ol;
NCIt definition : A semisynthetic estrogen. Metabolized by the liver to ethynyl estradiol, mestranol
serves as the estrogen component in several combination oral contraceptives. (NCI04);
UNII : B2V233XGE7;
InChIKey : IMSSROKUHAOUJS-MJCUULBUSA-N;
CAS number : 72-33-3; a href https://gsrs.ncats.nih.gov/ginas/app/beta/browse-substance?search 72-33-3
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