Used as an intermediate in the synthesis of pharmaceuticals, particularly in the preparation of active pharmaceutical ingredients (APIs) requiring alkylating or ring-opening reactions. Its chloroethyl and oxazolidinone functionalities allow for selective modifications in drug development, especially in oncology and central nervous system agents. Also employed in the production of specialty polymers and agrochemicals due to its reactivity and structural stability. Handling requires caution due to potential alkylating activity and associated toxicity.