140942-26-3 (TETRASODIUM SALT) 2,2'-Stilbenedisulfonic acid der. 2-Naphthalenesulfonic acid, 5,5'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)azo]]bis[8-amino- AIDS-000330 AIDS000330 NSC34933 (TETRASODIUM SALT) NSC634750 (SODIUM SALT)