HS CodesVI · Products of the chemical or allied industries29 · Organic chemicals2901290123290123Chapter 29Copy pageButene (butylene) and isomers thereofDescriptionAcyclic hydrocarbons : Unsaturated : Butene (butylene) and isomers thereofWas this page helpful?YesNoPrevious290122Propene (propylene)NextButa-1,3-diene and isoprene290124