Try searching for...
SCFBio, IIT Delhi
Formula: C20H26O7 | Mol. Weight: 378.40 g/mol
IUPAC: (1S,2S,3S,4S,5S,8R,9R,12S)-8-formyl-5,12-dihydroxy-4-methyl-13-methylidenetetracyclo[10.2.1.01,9.03,8]pentadecane-2,4-dicarboxylic acid
CC1(C(CCC2(C1C(C34C2CCC(C3)(C(=C)C4)O)C(=O)O)C=O)O)C(=O)O