Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceutical compounds. It serves as a building block for drugs targeting central nervous system disorders due to its ability to cross the blood-brain barrier. Commonly employed in the development of beta-blockers and other cardiovascular agents. Also utilized in the synthesis of agrochemicals and specialty polymers where controlled reactivity and stability are required. Its tert-butyl ester group allows for selective deprotection under mild acidic conditions, making it valuable in multi-step synthetic routes.