1-Naphthalenesulfonic acid, 3-diazo-3,4-dihydro-4-oxo-, 4-benzoyl-1,2,3-benzenetriyl ester 4-Benzoylbenzene-1,2,3-triyl tris(3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulphonate) 84522-08-7 EINECS 283-004-7