Einecs 281-611-1

Tetrasodium 2-((5-(aminocarbonyl)-1,6-dihydro-4-methyl-2-oxido-6-oxo-1-(2-(4-sulphonatophenyl)ethyl)-3-pyridyl)azo)-5-((3-phosphonatophenyl)azo)benzenesulphonate

tetrasodium 2-[[5-(aminocarbonyl)-1,6-dihydro-4-methyl-2-oxido-6-oxo-1-[2-(4-sulphonatophenyl)ethyl]-3-pyridyl]azo]-5-[(3-phosphonatophenyl)azo]benzenesulphonate

2-[[[5-(Aminocarbonyl)-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-1-[2-(4-sulfophenyl)ethyl]pyridin]-3-yl]azo]-5-[(3-phosphonophenyl)azo]benzenesulfonic acid tetrasodium salt