2-Naphthalenesulfonamide, 6,7-bis((phenylsulfonyl)oxy)- 6,7-Bis((phenylsulphonyl)oxy)naphthalene-2-sulphonamide 6,7-Dihydroxy-2-naphthalenesulfonamide, dibenzenesulfonate 63217-38-9 EINECS 264-029-2