4-((2-(2,4-DIHYDROXYPHENYL)-3,5,7-TRIHYDROXY-4-OXO-4H-CHROMEN-8-YL)DIAZENYL)NAPHTHALENE-1-SULFONIC ACID
4-((2-(2,4-dihydroxyphenyl)-3,5,7-trihydroxy-4-oxo-4h-chromen-8-yl)diazenyl)naphthalene-1-sulfonic acid