1H-Imidazole, 2-((5-fluoro-2-methoxyphenyl)azo)- 2-((2-Methoxy-5-fluorophenyl)azo)-1H-imidazole 2-((2-Methoxy-5-fluorphenyl)azo)-1H-imidazol [German] 2-((5-Fluoro-2-methoxyphenyl)azo)-1H-imidazole 77636-93-2