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HFC-245fa is a hydrocarbon used primarily for closed-cell spray foam insulation, also known as pentafluoropropane. Unlike CFC and HCFC blowing agents formerly used for this purpose, it has no ozone depletion potential and is nearly non-toxic. Although it is intended to remain trapped within the foam insulation, it is practically non biodegradable with a lifetime of 7.2 years when it eventually does escape into the atmosphere.NamesIUPAC name1,1,1,3,3-pentafluoropropaneOther namesR-245fa; HFC-245fa; Enovate 3000; Genetron 245fa; AC1Q4KND; UNII-TA9UOF49CYIdentifiersCAS Number460-73-1 [1]ChemSpide