Secondary and tertiary amines are named in the IUPAC system using locant N to designate substituents attached to the nitrogen atom. For instance, CH₃NHCH₃CH₃ is N-methylethanamine, and (CH₃CH₃)₃N is N,N-diethylethanamine.

In the IUPAC system, primary amines are named as alkanamines by replacing the ‘e’ of the alkane with the word “amine.” For amines with multiple amino groups, positions are specified by numbering the carbon atoms with -NH₂ groups and using ...

Aliphatic amines are named by prefixing the alkyl group to “amine” as one word (e.g., methylamine). In secondary and tertiary amines with identical alkyl groups, the prefix di or tri is added before the alkyl group name.

Tertiary amines are formed by replacing another hydrogen atom in a secondary amine with an alkyl/aryl group. Amines are ‘simple’ when all the alkyl or aryl groups are the same and ‘mixed’ when they are different.

A secondary amine, such as R-NHR’, is formed when two hydrogen atoms of ammonia or one hydrogen atom of R-NH₂ are replaced by another alkyl/aryl group (R’).