IUPAC names

Under the IUPAC system, a PRIMARY amine's name is built by taking the name of the parent alkane, replacing its final '-e' with the suffix '-amine' (giving the family name 'alkanamine'), and adding a locant number before that suffix to show exactly where the amino group sits on the chain (e.g. propan-1-amine, propan-2-amine). When two or more amino groups are present on the same chain, the multiplying prefixes 'di-', 'tri-' and so on are used, each with its own locant -- and in this multiple-amine case the parent alkane's final '-e' is deliberately RETAINED before the prefix-suffix combination is added (e.g. ethane-1,2-diamine, hexane-1,6-diamine), unlike the single-amine case where the '-e' is dropped. SECONDARY and TERTIARY amines are instead named as N-substituted derivatives of a primary amine: the LARGEST alkyl group attached to nitrogen is chosen as the parent alkane (and so gives the base 'alkanamine' name), while every other group on nitrogen is cited as an 'N-' substituent prefix, in alphabetical order if there is more than one (e.g. N-ethyl-N-methylpropan-1-amine, where propan-1-amine is the parent because propyl is the largest of the three groups on nitrogen). For ARYLAMINES, the final '-e' of the parent arene's name is replaced by '-amine' (so aniline's fully s …