Used primarily as an intermediate in the production of acetic acid, pyridine derivatives, and pentaerythritol. Common in the synthesis of resins, perfumes, and flavorings due to its sharp, fruity odor. Employed in the manufacture of mirrors and silvered glass through the silvering process, where it acts as a reducing agent. Found in some cigarette smoke and vehicle exhaust, contributing to air pollution and health concerns. Used in the food industry as a flavoring additive, though in limited quantities due to toxicity. Plays a role in the production of certain dyes and pharmaceuticals.