Dodecyl 4,6-dibromothieno[3,4-b]thiophene-2-carboxylate
5,6-Dibromothieno[2,3-d]pyrimidin-4(3H)-one
4,6-Dibromothieno[3,4-c]furan-1,3-dione
4,6-Dibromothieno[3,4-b]thiophene-2-carboxylic acid
