C18H20O2 17α-Dihydroequilenin 17β-Dihydroequilenin 4-Methyl-2,4-bis(4-hydroxyphenyl)pent-1-ene 8,9-Dehydroestrone Bisphenol Z Dianin's compound Dianol Diethylstilbestrol Equilin Hippulin Trendione