2-Naphthalenesulfonic acid, 3,3'-(cyclohexylidenebis((2-methyl-4,1-phenylene)azo))bis(4,6-dihydroxy-, disodium salt 3,3'-(Cyclohexylidenebis((2-methyl-4,1-phenylene)azo))bis(4,6-dihydroxy-2-naphthalenesulfonic acid), disodium salt 53988-76-4 6507-79-5 Disodium 3,3'-(cyclohexylidenebis((2-methyl-4,1-phenylene)azo))bis(4,6-dihydroxynaphthalene-2-sulphonate) EINECS 229-398-6