2-(Pentafluoroethyl)heptafluorotetrahydrofuran
2-(Pentafluoroethyl)heptafluorotetrahydrofuran ??
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2-(Pentafluoroethyl)heptafluorotetrahydrofuran C??? ??, ??, ??
2-(Pentafluoroethyl)heptafluorotetrahydrofuran ?? ?? ? ???
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2-(Pentafluoroethyl)heptafluorotetrahydrofuran ?? ??
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