HS code 290123: Butene
- Covers:
- Acyclic hydrocarbons: Butene (butylene) and isomers thereof.
- Listed US duty:
- 0% (US general rate, HTS 2026)
Official description
Acyclic hydrocarbons : Unsaturated : Butene (butylene) and isomers thereof
Find or check your HS code
Suggestions from the HS index, not a customs ruling
Describe what you ship: what it is, what it is made of, how it is processed and what it is used for. I narrow it down against the real HS hierarchy, or check a code you were given.
What 290123 covers and what it doesn’t
Official text: Acyclic hydrocarbons › Unsaturated › Butene (butylene) and isomers thereof.
Nearby codes to check
US duty rate
0%
General (MFN) rate in the US Harmonized Tariff Schedule, 2026 edition. A range means the rate depends on the 8-digit US line your product falls under. Extra duties such as Section 301, Section 232 or anti-dumping orders can apply on top, depending on origin. Check the lines on hts.usitc.gov. Not legal advice.
Common questions
- What is HS code 290123?
- Acyclic hydrocarbons : Unsaturated : Butene (butylene) and isomers thereof
- What duty rates apply to 290123?
- Listed duty rates range from 0% across 1 country rate.
Browse all of Chapter 29: Organic chemicals →
Go beyond the code
Find the companies shipping under 290123 in the company directory, or classify and check duty with the CLI.