Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of proton pump inhibitors (PPIs) for treating gastric acid-related disorders. Its structure supports the formation of active compounds that inhibit the H+/K+-ATPase enzyme in the stomach lining. Commonly employed in the production of drugs like ilaprazole and other benzimidazole derivatives. Also utilized in research for developing new anti-ulcer agents due to its favorable reactivity and functional group arrangement.