4-Dimethylamino-2-nitrobenzaldehyde may be used to synthesize the following substituted 4-(dimethylamino)-6-nitrobenzaldehydes:5-chloro-4-(dimethylamino)-2-nitrobenzaldehyde3-chloro-4-(dimethylamino)-2-nitrobenzaldehyde3,5-dichloro-4-(dimethylamino)-6-nitrobenzaldehyde
