1-Naphthalenesulfonic acid, 5-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-; Benzyl Red AS C.I. Acid Red 141; Naphthalin-sulfonsaeure-(1)-(5-azo-1)-2-hydroxynaphthalin; (Naphthalin-sulfonsaeure-(1))-(5 azo 1)-naphthol-(2); 5-(2-Hydroxy-[1]naphthylazo)-naphthalin-1-sulfonsaeure; Acid Red
