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DTP & DTX Series
![4-(tridecan-7-yl)-4H-dithieno[3,2-b:2',3'-d]pyrrole, CAS #: 1158270-38-2](http://www.cal-os.com/wp-content/uploads/2016/04/DTP001-WB-300x222.png "DTP001, DTP-C13")
![4-(2-ethylhexyl)-4H-dithieno[3,2-b:2',3'-d]pyrrole, CAS #: 868173-44-8](http://www.cal-os.com/wp-content/uploads/2016/04/DTP002-WB-300x222.png "DTP002, DTP-EH")
![2,6-dibromo-4-(heptadecan-9-yl)-4H-dithieno[3,2-b:2',3'-d]pyrrole, CAS#: 1346837-43-1](http://www.cal-os.com/wp-content/uploads/2016/04/DTP003-WB-300x222.png "DTP003, DTP-C17Br")
![4-(2-ethylhexyl)-2,6-bis(trimethylstannyl)-4H-dithieno[3,2-b:2',3'-d]pyrrole, CAS #: 234499-56-9](http://www.cal-os.com/wp-content/uploads/2016/04/DTP004-WB-300x222.png "DTP004, DTP-EH(Sn)")
![2,6-dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[1,2-b:5,4-b']dithiophene, CAS#: 365547-21-3](http://www.cal-os.com/wp-content/uploads/2016/04/DTC001-WB-300x222.png "DTC001, DTC-2EH(Br)")
![2,6-dibromo-4,4-bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b']dithiophene, CAS#: 1089687-05-7](http://www.cal-os.com/wp-content/uploads/2016/04/DTS001-WB-300x222.png "DTS001, DTS-2EH(Br)")
![2,6-dibromo-4,4-dioctyl-4H-silolo[3,2-b:4,5-b']dithiophene, CAS #: 1160106-14-8](http://www.cal-os.com/wp-content/uploads/2016/04/DTS002-WB-300x222.png "DTS002,")
![2,6-dibromo-4,4-bis(2-ethylhexyl)-4H-germolo[3,2-b:4,5-b']dithiophene,](http://www.cal-os.com/wp-content/uploads/2016/04/DTG001-WB-300x222.png "DTGe001, DTGe-2H(Br)")
