(R)-1-(o-Tolyl)ethanamine is primarily used as a chiral building block in the synthesis of pharmaceuticals and fine chemicals. Its enantiomeric purity makes it valuable in the production of active pharmaceutical ingredients (APIs) where specific stereochemistry is crucial for biological activity. It is often employed in asymmetric synthesis to create compounds with high optical purity, particularly in the development of drugs targeting the central nervous system. Additionally, it serves as an intermediate in the preparation of agrochemicals and specialty chemicals, where its structural properties contribute to the desired efficacy and selectivity of the final product.