How is a compound with a carboxylic acid and an amine group named according to IUPAC guidelines?

A compound that contains both a carboxylic acid group and an amine group is named according to IUPAC guidelines by prioritizing the functional groups based on their ranking in nomenclature. The carboxylic acid is given priority because it is a higher ranking functional group than an amine.

In this naming convention, the carboxylic acid suffix takes precedence, and the presence of the amine group is indicated by a prefix that specifies its position on the carbon chain. For example, in a compound like 2-aminobutanoic acid, "butanoic acid" indicates the carboxylic acid part, while "2-amino" shows that the amine is attached to the second carbon.

Thus, the correct response follows this systematic approach to nomenclature by naming the compound primarily as a carboxylic acid and then indicating the position of the amine group within that structure, which aligns with the proper application of IUPAC rules.