(3beta,5xi,9xi,13xi,18xi)-3,19-dihydroxyursan-28-oic acid 1,10-Dihydroxy-1,2,6a,6b,9,9,12a-heptamethyl-eicosahydro-picene-4a-carboxylic acid 12,13-Dihydropomolic acid 3beta,19alpha-Dihydroxy-ursan-28-oic acid InChI=1/C30H50O4/c1-18-10-15-30(24(32)33)17-16-27(5)19(23(30)29(18,7)34)8-9-21-26(4)13-12-22(31)25(2,3)20(26)11-14-28(21,27)6/h18-23,31,34H,8-17H2,1-7H3,(H,32,33)/t18-,19?,20?,21?,22+,23?,26+,27-,28-,29-,30+/m1/s ursan-28-oic acid, 3,19-dihydroxy-, (3beta,5xi,9xi,13xi,18xi)-