sodium (E)-4-((3-(4-nitrophenyl)-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)diazenyl)benzenesulfonate

sodium (E)-4-((3-(4-nitrophenyl)-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)diazenyl)benzenesulfonate · CAS 1177131-02-0