英文别名(8S,13S,14S,16R,17R)-13-methyl-6,7,8,12,14,15,16,17-octahydrocyclopenta[a]phenanthrene-3,16,17-triol; Estra-1,3,5,9(11)-tetraene-3,16alpha,17beta-triol; 9,11-Didehydrooestriol; Estra-1,3,5,9(11)-tetraene-3,16α,17β-triol; 9 11-DIDEHYDROESTRIOL; Conjugated Estrogens EP Impurity A; Estriol EP Impurity A; Estra-1,3,5(10),9(11)-tetraene-3,16,17-triol, (16α,17β)-