běn bìng sāi fēn
benzothiophene C8H9, a heterocyclic compound (with one benzene ring and one cyclopentene ring)
苯
běn
benzene
并
bìng
variant of 並|并[bing4]
噻
sāi
used in transliteration
吩
fēn
used in 吩咐[fen1 fu5]
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