Section 06 Products of the chemical or allied 29 Organic chemicals 29 03 Halogenated derivatives of hydrocarbons 29 03 51 --2,3,3,3-Tetrafluoropropene (HFO-1234yf), 1,3,3,3-tetrafluoropropene (HFO-1234ze) and (Z)- 1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz) Commodity Code Description 29 03 51 00 --2,3,3,3-Tetrafluoropropene (HFO-1234yf), 1,3,3,3-tetrafluoropropene (HFO-1234ze) and (Z)- 1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz)
