triterpene terpenoid fundamental parent oleanane 0 412.407 412.73388 Beilstein:3140799 C30H52 CHEBI:36481 InChI=1S/C30H52/c1-25(2)16-17-27(5)18-19-29(7)21(22(27)20-25)10-11-24-28(6)14-9-13-26(3,4)23(28)12-15-30(24,29)8/h21-24H,9-20H2,1-8H3/t21-,22+,23+,24-,27-,28+,29-,30-/m1/s1 VCNKUCWWHVTTBY-KQCVGMHHSA-N [H][C@]12CC[C@]3([H])[C@@]4(C)CCCC(C)(C)[C@]4([H])CC[C@@]3(C)[C@]1(C)CC[C@@]1(C)CCC(C)(C)C[C@@]21[H] chebi_ontology oleanane