116001-75-3

1H-Pyrazole-3-carboxylic acid,4-[5-[3-carboxy-5-hydroxy-1-(2-sulfoethyl)-1H-pyrazol-4-yl]-3-methyl-2,4-pentadienylidene]-4,5-dihydro-5-oxo-1-(2-sulfoethyl)-, tetrapotassiumsalt