.alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-Hexafluoro-p-xylene 1,4-BIS(TRIFLUOROMETHYL)BENZENE 433-19-2 Benzene, 1,4-bis(trifluoromethyl)- Hexafluoro-p-xylene NSC61992 p-Bis(trifluoromethyl)benzene p-Xylene, .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexafluoro-