65701-77-1
3,3a-Dihydrothieno[3,2-b]thiophen-2,5-dion
→
~85%
60749-71-5
thieno[3,2-b]thiophene-2,5-dione
251-41-2
噻吩并[3,2-b]噻吩
135361-02-3
25121-87-3
2,5-二溴噻吩并[3,2-B]噻吩