2,4-Bis(5,6-di(4-phenylsulfonic acid)-1,2,4-triazin-3-yl)pyridine, tetrasodium salt 59895-79-3 Benzenesulfonic acid, 4,4',4'',4'''-(2,4-pyridinediylbis(1,2,4-triazine-3,5,6-triyl))tetrakis-, tetrasodium salt EINECS 261-975-8 Pyridine, 2,4-bis(5,6-di(phenylsulfonic acid)-1,2,4-triazin-3-yl)-,sodium salt Tetrasodium 4,4',4'',4'''-(pyridine-2,4-diyl(di-1,2,4-triazine-3,5,6-triyl))tetrakis(benzenesulphonate)