The chemical Mestranol has a designated molecular formula of C21H26O2 and a molecular weight of 310.437 g/mol. Synonyms may include: 33355, 8027 C. B., 4-06-00-06877 (Beilstein Handbook Reference), AI3-51798, BRN 2625905, Caswell No. 547A, CCRIS 377, Compound 33355, Devocin, 3,17-beta-Dihydroxy-17-alpha-ethynyl-1,3,5(10)-estratriene-3-methyl ether, EE3ME, EE(sub3)ME (ChemID).