Used as an intermediate in the synthesis of pharmaceutical compounds, particularly as a phenylacetic acid analog in the production of non-steroidal anti-inflammatory drugs (NSAIDs), where it helps inhibit the activity of the cyclooxygenase (COX) enzyme, reducing the production of inflammatory mediators in the body. It serves as a building block for active pharmaceutical ingredients due to its functional amine and carboxylic acid groups, which allow for easy modification and incorporation into larger drug molecules. Commonly employed in research and development for creating analogs with improved pharmacokinetic properties. Also utilized in the preparation of prodrugs and in medicinal chemistry for structure-activity relationship studies. Additionally, it can be applied in developing drugs related to the nervous system and hormones, owing to its structural similarity to certain neurotransmitters, providing potential for modulating receptor activities in the brain.