Synonyms: Perfluoroterephthalonitrile; 1,4-Dicyano-2,3,5,6-tetrafluorobenzene; 1,4-Dicyanotetrafluorobenzene; 2,3,5,6-tetrafluoro-4-benzenedicarbonitrile; Diamond 2031; diamond2031; Terephthalonitrile, tetrafluoro-; tetrafluoroterephthalodinitrile; 2,3,5,6-TETRAFLUORO TEREPHTHALONITRILE; 2,3,5,6-tetrafluoro-1,4-benzenedicarbonitrile; Tetrafluoroterephthalonitrile 99%; Tetrafluoroterephthalonitrile99%; 2,3,5,6-Tetrafluoro-terephthalonitrile