IUPAC: 5-hydroxy-8,8-dimethyl-10-(2-methylbut-3-en-2-yl)-2H,6H,7H,8H-pyrano[3,2-g]chromene-2,6-dione

SMILES: CC(C)(C=C)c1c2OC(C)(C)CC(=O)c2c(O)c2ccc(=O)oc12