Key facts
- HS code
- 2923.10
- Covers
- Choline and its salts
- Chapter
- 29: Organic chemicals
- Edition
- HS2022
- Duty in the United States
- See its 1 line
Summary
HS code 2923.10 covers choline and its salts. It sits in heading 29.23 (quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined) in chapter 29 (organic chemicals). Other goods of heading 29.23 are classified under 2923.20 (lecithins and other phosphoaminolipids), 2923.30 (tetraethylammonium perfluorooctane sulphonate), 2923.40 (didecyldimethylammonium perfluorooctane sulphonate) or 2923.90 (other). National tariff lines under 2923.10 are live on border.bot for the United States (1 line, also used by 1 other country).
What this code covers
HS code 2923.10 covers choline and its salts.
The legal text of the subheading is “Choline and its salts”, in HS2022.
What it doesn’t cover
Other goods of heading 29.23 are classified under 2923.20 (lecithins and other phosphoaminolipids), 2923.30 (tetraethylammonium perfluorooctane sulphonate), 2923.40 (didecyldimethylammonium perfluorooctane sulphonate) or 2923.90 (other).
How it is structured
2923.10 is a six-digit subheading. Its first two digits, 29, are the chapter; the first four, 2923, are heading 29.23; the last two, 10, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Chapter 29
- Organic chemicals
- Heading 29.23
- Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined
- Subheading 2923.10
- Choline and its salts
In other countries
National tariff lines under 2923.10 are live on border.bot for the United States (1 line, also used by 1 other country).
- United States1 line, used by 1 other country
Frequently asked questions
What does HS code 2923.10 cover?
HS code 2923.10 covers choline and its salts.
Which heading and chapter is HS code 2923.10 in?
HS code 2923.10 is in heading 29.23 (quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined) in chapter 29 (organic chemicals).
Where are goods of heading 29.23 classified when 2923.10 doesn’t fit?
Other goods of heading 29.23 are classified under 2923.20 (lecithins and other phosphoaminolipids), 2923.30 (tetraethylammonium perfluorooctane sulphonate), 2923.40 (didecyldimethylammonium perfluorooctane sulphonate) or 2923.90 (other).
Which countries’ tariffs list national lines under HS code 2923.10?
National tariff lines under 2923.10 are live on border.bot for the United States (1 line, 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.