Trans-2-methylcyclohexanamine hydrochloride is primarily utilized in organic synthesis as a chiral building block. It is often employed in the preparation of pharmaceuticals, particularly in the development of compounds with specific stereochemistry. The compound's chiral nature makes it valuable in the synthesis of enantiomerically pure drugs, which are crucial for ensuring efficacy and reducing side effects. Additionally, it serves as an intermediate in the production of agrochemicals, where precise stereochemistry can enhance the activity and selectivity of the final product. Its application extends to research laboratories, where it is used to study asymmetric synthesis and develop new catalytic methods.