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Perfluorooctane is a polyfluoroalkyl substance. Perfluorohexanoic acid (PFHxA), a 6-carbon perfluoroalkyl is an alternate of perfluorooctane. Phase behavior of semifluorinated n-alkanes in perfluorooctane has been studied.
P 3241 (OTTO) Perfluorooctane, 98% Cas 307-34-6 - used in chemical synthesis.