130260-61-6

1,3,5-Benzenetrisulfonic acid,2-[[[4,5-dihydro-4-[5-[5-hydroxy-1-methyl-3-[[(2,4,6-trisulfophenyl)amino]carbonyl]-1H-pyrazol-4-yl]-2,4-pentadienylidene]-1-methyl-5-oxo-1H-pyrazol-3-yl]carbonyl]amino]-, hexapotassium salt