5855-68-5

EINECS 227-465-4 1-(2-sulfophenyl)-3-phenyl-5-pyrazolone 2-(5-oxo-3-phenyl-4H-pyrazol-1-yl)benzenesulfonic acid 2-(5-keto-3-phenyl-4H-pyrazol-1-yl)benzenesulfonic acid 2-(4,5-Dihydro-5-oxo-3-phenyl-1H-pyrazol-1-yl)benzenesulfonic acid 2-(4,5-dihydro-5-oxo-3-phenyl-1H-pyrazol-1-yl)benzenesulphonic acid Benzenesulfonic acid, 2-(4,5-dihydro-5-oxo-3-phenyl-1H-pyrazol-1-yl)-