Benzoyl chloride is widely used in the chemical industry as a key reagent for introducing the benzoyl group into various compounds. It is commonly employed in the synthesis of benzoyl peroxide, a major initiator in the polymerization of plastics and resins. Additionally, it serves as an intermediate in the production of pharmaceuticals, dyes, and perfumes, where it helps create specific functional groups or structures. In organic synthesis, it is utilized for acylation reactions to modify alcohols, amines, and phenols. It also plays a role in the manufacture of benzophenone derivatives, which are used as UV absorbers in coatings and sunscreens. Due to its reactivity, it is essential in laboratory settings for preparing complex organic molecules.