(2alpha)-2,19-dihydroxy-3-oxours-12-en-28-oic acid 1,11-Dihydroxy-1,2,6a,6b,9,9,12a-heptamethyl-10-oxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid 2alpha,19alpha-Dihydroxy-3-oxo-urs-12-en-28-oic acid InChI=1/C30H46O5/c1-17-10-13-30(24(33)34)15-14-27(5)18(22(30)29(17,7)35)8-9-21-26(4)16-19(31)23(32)25(2,3)20(26)11-12-28(21,27)6/h8,17,19-22,31,35H,9-16H2,1-7H3,(H,33,34)/t17-,19-,20+,21-,22-,26+,27-,28-,29-,30+/m1/s urs-12-en-28-oic acid, 2,19-dihydroxy-3-oxo-, (2alpha)-