3-(3,4-Difluorophenyl)propanoic acid is primarily used in the pharmaceutical industry as a key intermediate in the synthesis of various active pharmaceutical ingredients (APIs). It plays a significant role in the development of drugs targeting central nervous system disorders, including antidepressants and antipsychotics. Its structure, featuring a difluorophenyl group, is particularly valuable for enhancing the pharmacokinetic properties of drug molecules, such as improving bioavailability and metabolic stability. Additionally, it is utilized in research and development for creating novel compounds with potential therapeutic applications, particularly in areas like inflammation and pain management.