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Tetrafluorophthalic acid
Tetrafluorophthalic anhydride
2',3',4',5',6'-Pentafluoroacetophenone
2,3,4,5,6-Pentafluorobenzamide
2,3,5,6-Tetrafluoro-4-methylbenzoic acid
Tetrafluoroterephthalic acid
Acefylline
3-Fluorophthalic anhydride
2,3,5,6-Tetrafluorophenylhydrazine