light brown crystalline powder
4-(Dimethylamino)benzonitrile can be used in the synthesis of 3,6-diphenyl-2,5-dihydro-pyrrolo[3,4-c]pyrrole-1,4-dione derivatives.
4-(Dimethylamino)benzonitrile is used in predicting the carcinogenicity of aromatic amine derivative in UK EMS collaborative study.
4-(Dimethylamino)benzonitrile is extensively used in photophysical studies due to its ability to undergo intramolecular charge transfer (ICT) from the dimethylamino moiety to the cyanophenyl moiety on photo-excitation leading to the appearance of dual fluorescence.