2901.24.20.00
Having a purity of 95 percent or more by weight
Classification path
- Acyclic hydrocarbons
- Unsaturated
- Buta-1,3-diene and isoprene
- Isoprene
- Having a purity of 95 percent or more by weight
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- 25%
- Unit of quantity
- kg
Related lines in heading 2901
- 2901.10.10.00Acyclic hydrocarbons / Saturated / Ethane and butaneFree
- 2901.10.30.00Acyclic hydrocarbons / Saturated / n-Pentane and isopentaneFree
- 2901.10.40.00Derived in whole or in part from petroleum, shale oil or natural gasFree
- 2901.10.50.00Acyclic hydrocarbons / Saturated / OtherFree
- 2901.21.00.00Acyclic hydrocarbons / Unsaturated / EthyleneFree
- 2901.22.00.00Acyclic hydrocarbons / Unsaturated / Propene (Propylene)Free
- 2901.23.00.00Butene (Butylene) and isomers thereofFree
- 2901.24.10.00Unsaturated / Buta-1,3-diene and isoprene / Buta-1,3-dieneFree
- 2901.24.50.00Buta-1,3-diene and isoprene / Isoprene / OtherFree
- 2901.29.10.10Linear α-olefins (C6-C30), unmixedFree
- 2901.29.10.50Derived in whole or in part from petroleum, shale oil or natural gas / OtherFree
- 2901.29.50.00Acyclic hydrocarbons / Unsaturated / OtherFree
About heading 2901
Acyclic hydrocarbons
Heading 2901 covers acyclic hydrocarbons, meaning hydrocarbon molecules that are not ring-shaped. It is split first by saturation: 2901.10 for saturated compounds and 2901.21 through 2901.29 for unsaturated ones. The unsaturated lines name specific chemicals such as ethylene, propene, butenes, butadiene and isoprene, with residual lines for other compounds and for products derived from petroleum, shale oil or natural gas. Every line in this heading carries a general (MFN) rate of Free.
Full guide to heading 2901Products in this heading
- Ethane
- Butane
- n-Pentane
- Isopentane
- Ethylene
- Propylene (propene)
- Buta-1,3-diene
- Isoprene of 95% or higher purity
Frequently asked questions
What is the HTS code for ethylene?
Ethylene is classified under 2901.21.00.00. Its general (MFN) duty rate is Free.
What is the duty on isoprene?
Isoprene with a purity of 95% or more by weight falls under 2901.24.20.00, and other isoprene falls under 2901.24.50.00. Both lines carry a general (MFN) rate of Free.
How do I classify butadiene?
Buta-1,3-diene is classified under 2901.24.10.00, with a general (MFN) rate of Free. It sits in the unsaturated group, separate from the isoprene lines.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.