Search the dictionary A Chinese word or character, or English Draw a character Search 2 entries. běnbìngsāifēn 苯并噻吩 benzothiophene C8H9, a heterocyclic compound (with one benzene ring and one cyclopentene ring) běnbìngsāifēn 苯並噻吩 benzothiophene C8H9, a heterocyclic compound (with one benzene ring and one cyclopentene ring)