Synonyms:
3',2'-d]thiophene-2-carboxylic acid ; thieno[3,2-b:4,5-b']dithiophene ; bisthieno[3,2-b:2',3'-d]thiophene ; dithieno[2,3-b:2',3'-d]thiophene ; 3',2'-d]thiophene-2-carbonitrile ; dithieno[3,4-b ; 2',3'-d]thiophene-2-carboxylic acid ; dithieno[3,2-b:2',3'-d]thiophene ; dithieno[3,2-b ; dithieno[2,3-b ; 3',4'-d]thiophene ; [3]thienoacene