Einecs 287-239-6

disodium 3-hydroxy-4-[(2-hydroxy-4-methyl-5-sulphonatophenyl)methyl]naphthalene-1-sulphonate

3-Hydroxy-4-[(2-hydroxy-4-methyl-5-sodiosulfophenyl)methyl]-1-naphthalenesulfonic acid sodium salt