Sulphonamides
6-digit subheadings (6)
Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.
Sulphonamides; N-methylperfluorooctane sulphonamide
Sulphonamides; N-ethylperfluorooctane sulphonamide
Sulphonamides; N-ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide
Sulphonamides; N-(2-hydroxyethyl)-N-methylperfluorooctane sulphonamide
Sulphonamides; other perfluorooctane sulphonamides
Sulphonamides; n.e.c. in heading no. 2935
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 …
- 2918 — Acids; carboxylic acid with additional oxygen function and their anhyd…
- 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…
- 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