19-Nor-9-beta,10-alpha-lanosta-5,23-diene-3,11,22-trione, 9-methyl-2-beta,16-alpha,20,25-tetrahydroxy- 19-Norlanosta-5,23-diene-3,11,22-trione, 2,16,20,25-tetrahydroxy-9-methyl-, (2beta,9beta,10alpha,16alpha,23E)- (9CI) 3877-86-9 Cucurbitacin D Cucurbitacine (D) Elatericin A Elatericine A NSC 308606 NSC 521776