Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 03 Halogenated derivatives of hydrocarbons. 29 03 46 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea), 1,1,1,2,2,3-hexafluoropropane (HFC-236c Commodity Code Description 29 03 46 00 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea), 1,1,1,2,2,3-hexafluoropropane (HFC-236c