Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of antiviral and antimicrobial agents. The 1,3-dithian-2-yl group acts as an effective protecting group for carbonyl functionalities, allowing selective reactions at specific sites, such as the 2-chloro position on the pyrazine ring. This enables controlled functionalization, making it valuable in constructing complex heterocyclic systems. Commonly employed in research settings for creating pyrazine-based derivatives with potential biological activity. Also utilized in agrochemical research for designing novel pesticides due to its reactivity and stability in various reaction conditions.