N-methyl-l- phenylalanine is an enantiomer of the amino acid L-phenylalanine that is found in nature, with the methyl group joined to the nitrogen atom. It has the chemical formula C10H13NO2. The building blocks of proteins, amino acids are crucial for many biological processes in the body. This substance is a crucial aromatic amino acid that is present in a variety of meals high in protein, including meat, fish, eggs, and dairy products. In comparison to the natural amino acid, N-methyl-l- phenylalanine can have various qualities and applications. It can be utilised for scientific studies and pharmaceutical purposes.