Try searching for...
SCFBio, IIT Delhi
Formula: C20H20O5 | Mol. Weight: 340.40 g/mol
IUPAC: (2R,3R,7Z,9S)-5-oxo-2,9-bis(prop-1-en-2-yl)-4,14-dioxatricyclo[9.2.1.13,6]pentadeca-1(13),6(15),7,11-tetraene-12-carboxylic acid
CC(=C)C1CC2=C(C=C(O2)C(C3C=C(C=C1)C(=O)O3)C(=C)C)C(=O)O