Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of anti-inflammatory and analgesic agents. It serves as a protected form of salicylic acid derivatives, allowing selective reactions in multi-step organic syntheses. Commonly employed in research settings to design compounds with improved bioavailability and reduced gastrointestinal irritation compared to traditional NSAIDs. Also utilized in the preparation of prodrugs where controlled release of the active moiety is desired.