Try searching for...
SCFBio, IIT Delhi
Formula: C28H22O8 | Mol. Weight: 486.50 g/mol
IUPAC: 4-[2-[2-(2,4-dihydroxyphenyl)-3-(3,5-dihydroxyphenyl)-4-hydroxy-2,3-dihydro-1-benzofuran-6-yl]ethenyl]benzene-1,3-diol
C1=CC(=C(C=C1O)O)C=CC2=CC(=C3C(C(OC3=C2)C4=C(C=C(C=C4)O)O)C5=CC(=CC(=C5)O)O)O