71786-50-0 Chromium, 3-((2-((3-chlorophenyl)amino)-1-naphthalenyl)azo)-4-hydroxybenzenesulfonamide 2-((1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-5-((methylamino)sulfonyl)benzoate sodium complexes EINECS 276-006-4