Used primarily as an alkylating agent in organic synthesis, enabling the introduction of acetyl groups in pharmaceutical and agrochemical manufacturing. It serves as a versatile intermediate in the production of esters, ethers, and other acetate derivatives. Commonly employed in the preparation of protecting groups for alcohols and phenols due to its reactivity under mild conditions. Also utilized as a solvent or reaction medium in specific esterification processes where controlled volatility and polarity are advantageous. Its ability to participate in substitution reactions makes it valuable in the development of specialty chemicals and fine intermediates.