19-Oxo-3-beta,5,14-trihydroxy-5-beta-bufa-20,22-dienolide 465-90-7 5-18-05-00180 (Beilstein Handbook Reference) 5-beta-BUFA-20,22-DIENOLIDE, 3-beta,5,14-TRIHYDROXY-19-OXO- BRN 0056259 Bufa-20,22-dienolide, 3,5,14-trihydroxy-19-oxo-, (3beta,5beta)- Bufotalidin EINECS 207-368-3 Gellebrigenin Hellebrigenin NSC 89594