(S)-1-(m-Tolyl)ethanamine is primarily used in the synthesis of chiral compounds, particularly in the pharmaceutical industry. It serves as a key intermediate in the production of enantiomerically pure drugs, where its stereochemistry is crucial for biological activity. The compound is also employed in asymmetric synthesis to create complex molecules with high optical purity. Additionally, it finds application in the development of agrochemicals and fine chemicals, where its structural properties contribute to the efficacy and specificity of the final products. Its role in catalysis and as a building block in organic synthesis further highlights its versatility in chemical research and industrial processes.