71873-51-3 Benzenesulfonic acid, 2,5-dichloro-4-(4-((5-(((dodecyloxy)carbonyl)amino)-2-sulfophenyl)azo)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-, disodium salt C.I. Acid Yellow 218 Disodium 2,5-dichloro-4-(4-((5-(((dodecyloxy)carbonyl)amino)-2-sulphonatophenyl)azo)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonate EINECS 276-127-2