CAS NO. 55698-26-5 | disodium 4-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulphonatophenyl)-1H-pyrazol-4-yl]azo]-3',5-dimethyl-4'-[[4-[[(4-methylphenyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-3-sulphonate

disodium 4-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulphonatophenyl)-1H-pyrazol-4-yl]azo]-3',5-dimethyl-4'-[[4-[[(4-methylphenyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-3-sulphonate

C.I. Acid orange 149	One of the kayanol milling yellow rw new
disodium 4-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulphonatophenyl)-1H-pyrazol-4-yl]azo]-3',5-dimethyl-4'-[[4-[[(4-methylphenyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-3-sulphonate