2, 2'-Stilbenedisulfonic acid, {4,4'-bis[(4-amino-1-naphthyl)azo]-} 5463-64-9 AIDS-123993 AIDS123993 Benzenesulfonic acid, 2,2'-(1, {2-ethenediyl)bis[5-[(4-amino-1-naphthalenyl)azo]-} NSC5067