1-((Dimethylphenyl)azo)-2-naphthalenol 1-((Dimethylphenyl)azo)-2-naphthol 2-Naphthalenol, 1-((dimethylphenyl)azo)- 2-Naphthol, 1-(xylylazo)- 68739-06-0 EINECS 272-128-7