DIF-TES-ADT;diF-TES-ADT 99% (HPLC);2,8-difluoro-5,11-bis(triethylsilylethynyl)anthradithiophene;Anthra[2,3-b:6,7-b']dithiophene, 2,8-difluoro-5,11-bis[2-(triethylsilyl)ethynyl]-;2,8-Difluoro-5,11-bis(triethylsilylethynyl)anthradithiophene,mixture of syn & anti isomers