72152-50-2 Benzoic acid, 2-((6-((4-((6-(benzoylamino)-1-hydroxy-3-sulfo-2-naphthalenyl)azo)-3-methylbenzoyl)amino)-1-hydroxy-3-sulfo-2-naphthalenyl)azo)-, trisodium salt EINECS 276-404-8 Trisodium 2-((6-((4-((6-(benzoylamino)-1-hydroxy-3-sulphonato-2-naphthyl)azo)-3-methylbenzoyl)amino)-1-hydroxy-3-sulphonato-2-naphthyl)azo)benzoate