Try searching for...
SCFBio, IIT Delhi
Formula: C14H10O6 | Mol. Weight: 274.22 g/mol
IUPAC: 8-hydroxy-2-methyl-4-oxo-5H-pyrano[3,2-c]chromene-10-carboxylic acid
CC1=CC(=O)C2=C(O1)C3=C(C=C(C=C3OC2)O)C(=O)O