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284590Chapter 28

284590 — Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: Other

Covers:
Isotopes other than those of heading 2844; compounds, inorganic or organic, of such… not listed under the other codes in this heading.
Not covered:
284510 (Heavy water (deuterium oxide) (Euratom)); 284520 (Boron enriched in boron-10 and its compounds); 284530 (Lithium enriched in lithium-6 and its compounds); and others.
Listed US duty:
0% (US general rate, HTS 2026)

Official description

Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined : Other

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.

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What 284590 covers and what it doesn’t

Official text: Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined › Other.

This is the “other” line of heading 2845 (isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined). It takes goods of that heading that no more specific subheading names. These go elsewhere:

  • 284510 Heavy water (deuterium oxide) (Euratom)
  • 284520 Boron enriched in boron-10 and its compounds
  • 284530 Lithium enriched in lithium-6 and its compounds
  • 284540 Helium-3

Nearby codes to check

  • Heading 2845 Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: every subheading side by side.

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 284590?
Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined : Other
What duty rates apply to 284590?
Listed duty rates range from 0% across 1 country rate.

Browse all of Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes →

Go beyond the code

Find the companies shipping under 284590 in the company directory, or classify and check duty with the CLI.

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