Synonyms: 2-[(4-amino-9,10-dihydro-9,10-dioxo-3-sulphoanthracen-1-yl)amino]-4-[[2-(sulphooxy)ethyl]sulphonyl]benzoic acid, potassium sodium salt;Benzoic acid, 2-[(4-amino-9,10-dihydro- 9,10-dioxo-3-sulfo-1-anthracenyl)amino]-4-[[2-(sulfooxy)ethyl]sulfonyl]-, potassiumsodium salt;Benzoic acid,2-[(4-amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino]-4-[[2-(sulfooxy)ethyl]sulfonyl]-,potassiumsodium salt;2-[[(4-Amino-9,10-dihydro-9,10-dioxo-3-sulfoanthracene)-1-yl]amino]-4-[[2-(sulfooxy)ethyl]sulfonyl]benzoic acid/potassium/sodium,(1:x:x) salt