Used primarily as an intermediate in organic synthesis, especially in the pharmaceutical industry. It serves as a sulfonylating agent to introduce the 2,3-dihydro-1H-indene-2-sulfonyl group into target molecules, enhancing lipophilicity or modifying biological activity. Commonly applied in the development of active pharmaceutical ingredients (APIs) where the indane ring system contributes to structural stability and receptor binding. Also utilized in the preparation of sulfonamide derivatives for research in medicinal chemistry. Its reactivity allows for efficient coupling with amines and alcohols under mild conditions, making it valuable in multi-step synthesis routes.