Synonyms: 19-Nor-9b,10a-lanosta-1,5,23-triene-3,11,22-trione, 2,16a,20,25-tetrahydroxy-9-methyl-,2,16-diacetate (8CI); 19-Nor-9b,10a-lanosta-1,5,23-triene-3,11,22-trione,2,16a,20,25-tetrahydroxy-9-methyl-,diacetate (7CI); Cucurbitacin I, 2,16-diacetate (6CI); Elatericin B,2,16-diacetate