.alpha.-Dihydroequilenin .alpha.-Dihydroequilenina .alpha.-Estra-1,3,5,7,9-pentaen-3,17-diol 17.alpha.-Dihydroequilenin 6639-99-2 Estra-1,3,5(10),6,8-pentaene-3,17-diol, (17.alpha.)- Estra-1,3,5(10),6,8-pentaene-3,17.alpha.-diol Estra-1,3,5,7,9-pentaene-3,17.alpha.-diol NSC12171 WLN: L E5 B666 FV OV NHTT&&J E1 &A