https://pubchem.ncbi.nlm.nih.gov/compound/1h-indenedisulfonic-acid_-2-benzo_f_quinolin-3-yl-2_3-dihydro-1_3-dioxo-_-disodium-salt
1h-indenedisulfonic acid, 2-benzo(f)quinolin-3-yl-2,3-dihydro-1,3-dioxo-, disodium salt - PubChem
1h-indenedisulfonic acid, 2-benzo(f)quinolin-3-yl-2,3-dihydro-1,3-dioxo-, disodium salt chemical information summary.