64264-60-4

Benzenesulfonic acid,4-[[4-[5-[2,3-dihydro-5-hydroxy-3-oxo-1-[(4-sulfophenyl)methyl]-1H-pyrazol-4-yl]-2,4-pentadienylidene]-3,5-dioxo-1-pyrazolidinyl]methyl]-,dipotassium salt