Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the production of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role in biological activity. Commonly employed in the development of central nervous system agents, including antidepressants and antipsychotics, due to its structural similarity to natural neurotransmitters. Also utilized in agrochemicals for the creation of enantiomerically pure herbicides and pesticides. Serves as a resolving agent or intermediate in asymmetric synthesis, enabling the selective formation of desired enantiomers in complex organic reactions.