(5-cyanoiminothieno[3,2-b]thiophen-2-ylidene)cyanamide

噻吩并[3,2-B]噻吩-2-甲酸

2,5-二溴噻吩并[3,2-B]噻吩

5-thieno[3,2-b]thiophen-5-ylthieno[3,2-b]thiophene

3,6-dimethoxythieno[3,2-b]thiophene