
3-(Bromomethyl)-5-chlorobenzo[b]thiophene is a halogenated benzothiophene derivative serving as a crucial building block in pharmaceutical synthesis, particularly for kinase inhibitors and anticancer agents. This compound exhibits a melting point of 116-120°C and predicted boiling point of 345.5±27.0°C at 760 mmHg. With a density of 1.693 g/cm³ and refractive index of 1.704, it demonstrates good stability under inert conditions. The reactive bromomethyl group enables diverse functionalization through nucleophilic substitution reactions. Storage requires protection from light and moisture at 2-8°C. Safety precautions include using acid-resistant gloves and eye protection due to its corrosive properties (GHS Category 1B).