2,5-Dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-(phenylazo)-1H-pyrazol-1-yl)benzenesulphonic acid, compound with bis(2-ethylhexyl)amine(1:1) 68109-77-3 Benzenesulfonic acid, 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-(phenylazo)-1H-pyrazol-1-yl)-, compd. with 2-ethyl-N-(2-ethylhexyl)-1-hexanamine (1:1) Benzenesulfonic acid, 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-(phenylazo)-1H-pyrazol-1-yl)-, di(2-ethylhexyl)amine salt EINECS 268-490-0