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291819Chapter 29

291819 — Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other

Covers:
Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides… not listed under the other codes in this heading.
Not covered:
291811 (Carboxylic acids with alcohol function but…); 291812 (Carboxylic acids with alcohol function but…); 291813 (Carboxylic acids with alcohol function but…); and others.
Listed US duty:
0%–6.5% (US general rate, HTS 2026)

Official description

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives : Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives : Other

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Suggestions from the HS index, not a customs ruling

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What 291819 covers and what it doesn’t

Official text: Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives › Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives › Other.

This is the “other” line of heading 2918 (carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives). It takes goods of that heading that no more specific subheading names. These go elsewhere:

  • 291811 Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Lactic acid, its salts and esters
  • 291812 Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Tartaric acid
  • 291813 Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Salts and esters of tartaric acid
  • 291814 Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Citric acid
  • 291815 Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Salts and esters of citric acid
  • 291816 Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Gluconic acid, its salts and esters
  • 291817 Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — 2,2-Diphenyl-2-hydroxyacetic acid (benzilic acid)
  • 291818 Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Chlorobenzilate (ISO)
  • 291821 Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Salicylic acid and its salts
  • 291822 Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — o-Acetylsalicylic acid, its salts and esters
  • 291823 Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Other esters of salicylic acid and their salts
  • 291829 Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives — Other
  • 291830 Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives
  • 291891 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts and esters
  • 291899 Other

Nearby codes to check

  • Heading 2918 Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives: every subheading side by side.

US duty rate

0%–6.5%

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.

Who imports under 291819

EximAgent lists companies with recorded shipments under this code, built from customs records, with who they buy from and how often. See importers of 291819 →

Common questions

What is HS code 291819?
Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives : Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids…
What duty rates apply to 291819?
Listed US duty: 0%–6.5% (US general rate, HTS 2026).

Browse all of Chapter 29: Organic chemicals →

Go beyond the code

Classify a product and check the duty for your destination with the CLI, then keep researching in your own agent.

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