2-Thiophenesulfonyl chloride is a reactive sulfonyl chloride derivative primarily used in pharmaceutical synthesis and organic transformations. This compound features a melting point of 30-32°C and boiling point of 130-132°C at 14 mmHg, with a density of 1.58 g/cm³. It demonstrates characteristic reactivity toward nucleophiles (amines/alcohols) to form sulfonamides/sulfonate esters. The material is moisture-sensitive and should be stored under inert gas (argon/nitrogen) at 2-8°C. Safety precautions are critical due to its corrosive properties (UN 3261, Packing Group II) and potential to release toxic gases (HCl/SO₂) upon decomposition. Applications include the synthesis of thrombin inhibitors and other bioactive thiophene derivatives.
