19-Nor-9-beta,10-alpha-lanosta-1,5,23-triene-3,11,22-trione, 9-methyl-2,16-alpha,20,25-tetrahydroxy-, 2,16-alpha,25-triacetate 26321-61-9 3-08-00-04378 (Beilstein Handbook Reference) BRN 3193315 Diacetyl-2,16 cucurbitacine (E)