68239-03-2 Benzenesulfonic acid, 4-hydroxy-3-((((((2-hydroxy-5-sulfophenyl)methyl)amino)carbonyl)amino)methyl)-5-methyl-, diammonium salt Diammonium 4-hydroxy-3-((((((2-hydroxy-5-sulphonatophenyl)methyl)amino)carbamoyl)methyl)-5-methylbenzenesulphonate EINECS 269-415-4