(17beta)-Estra-1,3,5(10)-triene-2,3,17-triol 2-Hydroxyestradiol 2-OH-E2 2-OH-Estradiol 362-05-0 4-06-00-07547 (Beilstein Handbook Reference) BRN 2219367 ESTRA-1,3,5(10)-TRIENE-2,3,17-beta-TRIOL NSC 61711