108910-30-1

Benzenesulfonic acid,4-[3-cyano-4-[5-[3-cyano-1,5-dihydro-5-oxo-1-(4-sulfophenyl)-4H-pyrazol-4-ylidene]-1,3-pentadienyl]-5-hydroxy-1H-pyrazol-1-yl]-, dipotassiumsalt