HS code 2901.24: Unsaturated, buta-1,3-diene and isoprene
Last updated
Key facts
- HS code
- 2901.24
- Covers
- Unsaturated, buta-1,3-diene and isoprene
- Heading
- 29.01: Acyclic hydrocarbons
- Chapter
- 29: Organic chemicals
- Edition
- HS2022
- Duty in the United States
- See its 3 lines
Summary
HS code 2901.24 covers unsaturated, buta-1,3-diene and isoprene. It sits in heading 29.01 (acyclic hydrocarbons) in chapter 29 (organic chemicals). Other goods of heading 29.01 are classified under 2901.10 (saturated), 2901.21 (unsaturated, ethylene), 2901.22 (unsaturated, propene (propylene)), 2901.23 (unsaturated, butene (butylene) or isomers thereof) and 1 other. National tariff lines under 2901.24 are live on border.bot for the United States (3 lines, also used by 1 other country).
What this code covers
HS code 2901.24 covers unsaturated, buta-1,3-diene and isoprene.
The legal text of the subheading is “Unsaturated: Buta-1,3-diene and isoprene”, read under “Unsaturated”, in HS2022.
What it doesn’t cover
Other goods of heading 29.01 are classified under 2901.10 (saturated), 2901.21 (unsaturated, ethylene), 2901.22 (unsaturated, propene (propylene)), 2901.23 (unsaturated, butene (butylene) or isomers thereof) and 1 other.
How it is structured
2901.24 is a six-digit subheading. Its first two digits, 29, are the chapter; the first four, 2901, are heading 29.01; the last two, 24, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Chapter 29
- Organic chemicals
- Heading 29.01
- Acyclic hydrocarbons
- Within the heading
- Unsaturated
- Subheading 2901.24
- Buta-1,3-diene and isoprene
In other countries
National tariff lines under 2901.24 are live on border.bot for the United States (3 lines, also used by 1 other country).
- United States3 lines, used by 1 other country
Frequently asked questions
What does HS code 2901.24 cover?
HS code 2901.24 covers unsaturated, buta-1,3-diene and isoprene.
Which heading and chapter is HS code 2901.24 in?
HS code 2901.24 is in heading 29.01 (acyclic hydrocarbons) in chapter 29 (organic chemicals).
Where are goods of heading 29.01 classified when 2901.24 doesn’t fit?
Other goods of heading 29.01 are classified under 2901.10 (saturated), 2901.21 (unsaturated, ethylene), 2901.22 (unsaturated, propene (propylene)), 2901.23 (unsaturated, butene (butylene) or isomers thereof) and 1 other.
Which countries’ tariffs list national lines under HS code 2901.24?
National tariff lines under 2901.24 are live on border.bot for the United States (3 lines, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.