2-Chloro-5-nitroanisole , its cas register number is 1009-36-5. It also can be called Benzene,1-chloro-2-methoxy-4-nitro- ; 2-Methoxy-4-nitrochlorobenzene ; 1-Chloro-2-methoxy-4-nitrobenzene ; and 4-Chloro-3-methoxynitrobenzene .