154946-66-4

Yellow HRP Pigment Yellow 191:1 diazanium,4-chloro-5-methyl-2-[[3-methyl-5-oxo-1-(3-sulfonatophenyl)-4H-pyrazol-4-yl]diazenyl]benzenesulfonate Benzenesulfonic acid, 4-chloro-2-4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-ylazo-5-methyl-, diammonium salt 4-Chloro-2-[2-[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-5-methylbenzenesulfonic acid ammonium salt Benzenesulfonic acid, 4-chloro-2-[2-[4,5-dihydro-3-methyl-5-o xo-1-(3-sulfophenyl)-1H-pyrazol-4-y l]diazenyl]-5-methyl-, ammonium salt (1:2)