SubheadingDescriptionGeneralSpecialOther
2901.10 Saturated:
2901.21 Acyclic hydrocarbons
2901.22 Acyclic hydrocarbons
2901.23 Acyclic hydrocarbons
Other:
Unsaturated:
2901.24 Buta-1,3-diene and isoprene:
Isoprene:
2901.29 Other: