Try searching for...
SCFBio, IIT Delhi
Formula: C20H18O7 | Mol. Weight: 370.40 g/mol
IUPAC: 4-[4-(3,4-dihydroxyphenyl)-3-hydroxy-2,5-dimethoxyphenyl]benzene-1,2-diol
COC1=C(C(=C(C(=C1)C2=CC(=C(C=C2)O)O)OC)O)C3=CC(=C(C=C3)O)O