4-(1,1-Difluoroethyl)benzoic acid is primarily used as an intermediate in the synthesis of more complex chemical compounds, particularly in the pharmaceutical industry. It plays a role in the development of active pharmaceutical ingredients (APIs) for various therapeutic applications. The difluoroethyl group in its structure can enhance the bioavailability and metabolic stability of drug molecules, making it valuable in medicinal chemistry. Additionally, it is utilized in agrochemical research for the creation of novel pesticides and herbicides, where its unique chemical properties contribute to the effectiveness and specificity of these products.