19-Nor-9-beta,10-alpha-lanosta-5,23-diene-3,11,22-trione, 9-methyl-2-beta,16-alpha,20,25-tetrahydroxy-, 2-beta,16-alpha-diacetate 28973-62-8 3520-11-4 4-08-00-03723 (Beilstein Handbook Reference) BRN 3190816 Diacetyl-2,16 cucurbitacine (D)