1,4-BENZENEDICARBONITRILE, 2,3,5,6-TETRAFLUORO- 1,4-Dicyanotetrafluorobenzene 1835-49-0 2,3,5,6-Tetrafluoro-1,4-benzenedicarbonitrile 2,3,5,6-Tetrafluoroterephthalonitrile Diamond 2031 EINECS 217-397-3 NSC 97007 Terephthalonitrile, tetrafluoro- (8CI) Tetrafluoroterephthalodinitrile Tetrafluoroterephthalonitrile