The IUPAC name of
N-ethyl-N,N-di methyl 4-hexamine
N, N-di ethyl-N-dimethyl 4-butanamine
N-ethyl-N-methyl-4-methy1-2-pentanamine
3-(-ethylmethyl amino)-5-methylhexane
→ Alkyl amines in IUPAC nomenclature called as alkanamines[Alk+ane+amine].
→ Select longest continuous carbon chain as parent chain.