HS CodesVI · Products of the chemical or allied industries29 · Organic chemicals2901290124290124Chapter 29Copy pageButa-1,3-diene and isopreneDescriptionAcyclic hydrocarbons : Unsaturated : Buta-1,3-diene and isopreneWas this page helpful?YesNoPrevious290123Butene (butylene) and isomers thereofNextOther290129