Common Names CH2CH3 Name the alkyl or aryl groups bonded to nitrogen,then add suffix-amine. (CH3CH2)2NCH3 diethylmethylamine NHCH3 NH. cyclopentylmethylamine Diphenylamine => Chapter 19 6Chapter 19 6 Common Names Name the alkyl or aryl groups bonded to nitrogen, then add suffix -amine. (CH3 CH2 ) 2NCH3 NHCH3 NH diethylmethylamine cyclopentylmethylamine Diphenylamine =>