A novel organic semiconductor, 2,9-bis(perfluorobutyl)pentacene, was synthesized in seven steps, and was characterized by NMR, IR, and UV spectroscopy. From differential scanning calorimetry analyses, no liquid crystalline phase was observed, unlike 2,9-dibutylpentacene. The morphology of thin films formed at different substrate temperatures was investigated by atomic force microscopy (AFM) and X-ray diffraction analysis. Organic field-effect transistors (OFETs) fabricated with this compound showed electron mobility of 1.7×10−3 cm2 V−1 s−1 using Ag source–drain electrodes.