Synonyms:
benzoic acid,4,4'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)(2-oxido-2,1-diazenediyl)-4,1-phenylene-2,1-diazenediyl]]bis-,sodium salt (1:4) ; tetrasodium p,p'-[vinylenebis[(3-sulphonato-p-phenylene)-onn-azoxy-p-phenyleneazo]]dibenzoate ; benzoicacid,4,4'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)-onn-azoxy-4,1-phenyleneazo]]bis-,tetrasodium salt (9ci) ; benzoic acid, 4,4'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)-onn-azoxy-4,1-phenyleneazo]]bis-, tetrasodium salt ; 4,4'-[1,2-ethenediylbis[(3-sodiooxysulfonyl-4,1-phenylene)-onn-azoxy-4,1-phenyleneazo]]bisbenzoic acid disodium salt
