N-(2-Carboxyacetyl)-D-tryptophan finds application in the field of biochemistry and pharmaceutical research. It is primarily used as an intermediate in the synthesis of more complex molecules, particularly in the development of peptide-based drugs. Its structure, which includes both a tryptophan moiety and a carboxyacetyl group, makes it valuable for creating compounds that can interact with biological systems, such as enzyme inhibitors or receptor modulators. Additionally, it may be utilized in studies focusing on the role of tryptophan derivatives in metabolic pathways or as a building block for designing novel therapeutic agents targeting neurological or inflammatory conditions.