. "C0025506" . "19-Norpregna-1,3,5(10)-trien-20-yn-17-ol, 3-methoxy-, (17alpha)-"@en . . . "Mestranol"@en . "D008656" . . . "Mestranol"@en . "Ethinyl Estradiol 3-Methyl Ether"@en . .