6H-thieno[2,3-b]pyrrole; CAS No.: 250-79-3; 6H-thieno[2,3-b]pyrrole. PROPERTIES: 6H-thieno[2,3-b]pyrrole is a crystalline solid. Its molecular formula is C6H4NS2, and the molecular weight is approximately 156.23 g/mol. The compound has a melting point of approximately 130-132 C. It is moderately soluble in common organic solvents such as methanol and ethyl acetate, but is poorly soluble in water. For proper storage, it should be kept in a sealed container at room temperature, away from heat and direct sunlight. As a compound containing a thieno[2,3-b]pyrrole ring, it may exhibit certain reactivity and stability. When handling it, protective gloves and eye protection should be worn. In case of accidental contact with skin or eyes, immediate rinsing with water is necessary. APPLICATIONS: In organic synthesis, 6H-thieno[2,3-b]pyrrole serves as a valuable intermediate. The thieno[2,3-b]pyrrole ring provides unique electronic effects and opportunities for further functionalization. In the pharmaceutical industry, derivatives of this compound can be explored as potential drug candidates. For example, in the development of certain anti-inflammatory drugs, the structure of 6H-thieno[2,3-b]pyrrole can be modified to enhance the drug's efficacy and reduce side effects (as described in medicinal chemistry research articles). Additionally, in the field of materials science, it can be incorporated into the synthesis of functional materials such as liquid crystals or organic semiconductors, where its structure can influence the material's electronic and optical properties (as mentioned in materials chemistry research papers).