Acids; carboxylic acid with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives
In plain English
This heading covers organic acids and related compounds that contain carboxylic acid groups along with other oxygen-based functions, such as alcohols, phenols, aldehydes, or ketones, as well as their various derivatives like anhydrides, halides, and peroxides. The subheadings organize these goods by the specific type of additional oxygen function present, distinguishing between those with alcohol, phenol, or aldehyde/ketone groups. Specific items like lactic, tartaric, citric, and gluconic acids are listed separately, while others are grouped by their chemical structure or specific names like salicylic acid derivatives and 2,4,5-T.
6-digit subheadings (16)
Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.
Acids; carboxylic acids, (with alcohol function but without other oxygen function), lactic acid, its salts and esters
Acids; carboxylic acids, (with alcohol function but without other oxygen function), tartaric acid
Acids; carboxylic acids, (with alcohol function but without other oxygen function); salts and esters of tartaric acid
Acids; carboxylic acids, (with alcohol function but without other oxygen function), citric acid
Acids; carboxylic acids, (with alcohol function but without other oxygen function), salts and esters of citric acid
Acids; carboxylic acids, (with alcohol function but without other oxygen function), gluconic acid, its salts and esters
Acids; carboxylic acids, (with alcohol function but without other oxygen function), 2,2-Diphenyl-2-hydroxyacetic acid (benzilic acid)
Acids; carboxylic acids, (with alcohol function but without other oxygen function), chlorobenzilate (ISO)
Acids; carboxylic acids, (with alcohol function but without other oxygen function), other than lactic, tartaric, citric, and gluconic acids and their salts and esters
Acids; carboxylic acids, (with phenol function but without other oxygen function), salicylic acid and its salts
Acids; carboxylic acids, (with phenol function but without other oxygen function), o-acetylsalicylic acid, its salts and esters
Acids; carboxylic acids, (with phenol function but without other oxygen function), other esters of salicylic acid and its salts n.e.c. in item no. 2918.2
Acids; carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives, n.e.c. in item no. 2918.2
Acids; carboxylic acids, (with aldehyde or ketone function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives
Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts and esters
Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives; other than 2,4,5-T (ISO)
Chapter 29 classification notes
Frequent misclassification in this chapter
Finished medicaments: Chapter 30 (3004). Agricultural pesticides: Chapter 38 (3808) when formulated; raw active ingredients may be Chapter 29. Essential oils: Chapter 33 when perfumery-grade.
Classification certainty
The 6-digit level shown here is the internationally harmonised layer. Duty rates attach to national 8-10 digit tariff lines, which differ by country — use the duty calculator for lane estimates. For binding certainty, request a ruling from the destination customs authority.
Binding tariff ruling databaseOther headings in Chapter 29
- 2901 — Acyclic hydrocarbons
- 2902 — Cyclic hydrocarbons
- 2903 — Halogenated derivatives of hydrocarbons
- 2904 — Sulphonated, nitrated or nitrosated derivatives of hydrocarbons; wheth…
- 2905 — Acyclic alcohols and their halogenated, sulphonated, nitrated or nitro…
- 2906 — Alcohols; cyclic, and their halogenated, sulphonated, nitrated or nitr…
- 2907 — Phenols; monophenols, polyphenols, and phenol-alcohols
- 2908 — Phenols or phenol-alcohols; halogenated, sulphonated, nitrated or nitr…
- 2909 — Ethers, ether-alcohols, ether-phenols, ether-alcohol-phenols, alcohol …
- 2910 — Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-me…
- 2911 — Acetals and hemiacetals; whether or not with other oxygen function, an…
- 2912 — Aldehydes, whether or not with other oxygen function; cyclic polymers …
- 2913 — Aldehydes; halogenated, sulphonated, nitrated or nitrosated derivative…
- 2914 — Ketones and quinones; whether or not with other oxygen function, and t…
- 2915 — Acids; saturated acyclic monocarboxylic acids and their anhydrides, ha…
- 2916 — Acids; unsaturated acyclic monocarboxylic, cyclic monocarboxylic, thei…
- 2917 — Acids; polycarboxylic acids, their anhydrides, halides, peroxides and …
- 2919 — Esters; phosphoric, and their salts, including lactophosphates, their …
- 2920 — Esters of other inorganic acids of non-metals (other than of hydrogen …
- 2921 — Amine-function compounds
- 2922 — Oxygen-function amino-compounds
- 2923 — Quaternary ammonium salts and hydroxides; lecithins and other phosphoa…
- 2924 — Carboxyamide-function compounds; amide-function compounds of carbonic …
- 2925 — Carboxyimide-function compounds (including saccharin and its salts) an…
- 2926 — Nitrile-function compounds
- 2927 — Diazo-, azo- or azoxy-compounds
- 2928 — Organic derivatives of hydrazine or of hydroxylamine
- 2929 — Nitrogen-function compounds, n.e.c. in chapter 29
- 2930 — Organo-sulphur compounds
- 2931 — Other organo-inorganic compounds
- 2932 — Heterocyclic compounds with oxygen hetero-atom(s) only
- 2933 — Heterocyclic compounds with nitrogen hetero-atom(s) only
- 2934 — Nucleic acids and their salts, whether or not chemically defined; othe…
- 2935 — Sulphonamides
- 2936 — Provitamins, vitamins; natural or reproduced by synthesis (including n…
- 2937 — Hormones, prostaglandins, thromboxanes and leukotrienes, natural or re…
- 2938 — Glycosides, natural or reproduced by synthesis, and their salts, ether…
- 2939 — Alkaloids; natural or reproduced by synthesis, and their salts, ethers…
- 2940 — Sugars, chemically pure, other than sucrose, lactose, maltose, glucose…
- 2941 — Antibiotics
- 2942 — Organic compounds; n.e.c. in chapter 29