Try searching for...
SCFBio, IIT Delhi
Formula: C20H24O4 | Mol. Weight: 328.40 g/mol
IUPAC: 4b,8b-dimethyl-3,7-di(propan-2-yl)-4a,8a-dihydrobiphenylene-1,4,5,8-tetrone
CC(C)C1=CC(=O)C2(C(C1=O)C3(C2C(=O)C(=CC3=O)C(C)C)C)C