2-((4-Amino-9,10-dihydro-9,10-dioxo-3-sulphoanthracen-1-yl)amino)-4-((2-(sulphooxy)ethyl)sulphonyl)benzoic acid, potassium sodium salt 85940-62-1 Benzoic acid, 2-((4-amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino)-4-((2-(sulfooxy)ethyl)sulfonyl)-, potassium sodium salt EINECS 288-949-9