2-Benzylsuccinic acid is primarily used in the field of organic synthesis as a building block for more complex chemical compounds. Its structure allows it to act as an intermediate in the production of pharmaceuticals, particularly in the synthesis of active pharmaceutical ingredients (APIs) that require a benzyl group for biological activity.

In medicinal chemistry, it serves as a precursor for designing inhibitors targeting specific enzymes or receptors, contributing to drug discovery efforts. Additionally, it can be utilized in the development of fine chemicals and specialty materials, where its carboxylic acid groups enable further functionalization or polymerization processes.

Its application extends to research laboratories, where it is employed in studying reaction mechanisms or developing new synthetic methodologies due to its versatile reactivity.