Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of central nervous system agents and neuromuscular blockers. It serves as a building block for compounds with biological activity due to its structural similarity to neurotransmitters. Also employed in the preparation of specialty chemicals where a constrained amine moiety is required for enhanced metabolic stability or receptor selectivity. Its cyclopropyl group contributes to improved lipophilicity and binding affinity in drug design.