HS Code 2935Sulphonamides
6 six-digit codes · Heading 35 of 42 in Chapter 29 · World Customs Organization Harmonized System
HS code 2935 is the customs heading for sulphonamides, also spelled sulfonamides in the US. This page explains what the heading covers, how to pick the right subheading, and where to look up real shipment records.
Goods answering to “Sulphonamides” split into 6 six-digit codes, 293510 through 293590. Each one carries its own customs description, and the exact wording below is what a classification has to match. The heading is number 35 of 42 in Chapter 29, Organic chemicals, which runs to 410 six-digit codes in all.
Six-digit codes under heading 2935
| HS Code | Import–export description |
|---|---|
| 293510 | Sulphonamides; n-methylperfluorooctane sulphonamide |
| 293520 | Sulphonamides; n-ethylperfluorooctane sulphonamide |
| 293530 | Sulphonamides; n-ethyl-n-(2-hydroxyethyl) perfluorooctane sulphonamide |
| 293540 | Sulphonamides; n-(2-hydroxyethyl)-n-methylperfluorooctane sulphonamide |
| 293550 | Sulphonamides; other perfluorooctane sulphonamides |
| 293590 | Sulphonamides; n.e.c. in heading no. 2935 |
What HS code 2935 covers
Heading 2935 is for sulphonamides. These are organic chemicals, so the heading sits in Section VI, which groups the chemical and allied industries. Customs offices use it to sort one narrow family of goods.
You may also see it written as HSN code 2935 or HTS code 2935. The number is the same. The first digits follow the Harmonized System, a shared classification that many countries use.
The heading text is short, but the subheadings under it are precise. Code 293590 takes every other sulphonamide.
How to choose the right 2935 subheading
Start with the exact chemical name on the invoice or the safety data sheet. Then compare it with the wording of each code. The match must be to the name, not to a general idea of the product.
If the name fits one of the named compounds, use that code. If the goods are a perfluorooctane sulphonamide that is not named, use 293550. If they are any other sulphonamide, use 293590. In customs wording, n.e.c. means not elsewhere classified, so this is the catch-all of the heading.
Here is a plain label for each code, written with the official letter casing:
- 293510: N-methylperfluorooctane sulphonamide
- 293520: N-ethylperfluorooctane sulphonamide
- 293530: N-ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide
- 293540: N-(2-hydroxyethyl)-N-methylperfluorooctane sulphonamide
- 293550: any other perfluorooctane sulphonamide
- 293590: any other sulphonamide in this heading
National tariff lines and the six-digit codes
Many countries add extra digits to the six-digit codes to build their own tariff lines. Those longer lines differ from one country to the next. A national line that reads as other sulphonamides sits under 293590.
This page does not list national lines or duty rates. If you are unsure which code fits your goods, try the HS code classifier, then check the tariff of the country you ship to.
How 2935 differs from nearby headings
Several headings in Chapter 29 sound close to sulphonamides. Check these before you settle on a code.
- HS 2930 organo-sulphur compounds is for other organic compounds that contain sulphur.
- HS 2934 covers nucleic acids and other heterocyclic compounds.
- HS 2936 is for provitamins and vitamins.
- HS 2941 is for antibiotics, which have their own heading.
- HS 2942 is for organic compounds not elsewhere classified in the chapter. Use it only when no other heading fits.
Sulphonamides import and export data (HS 2935)
A code tells you what a product is. Shipment records tell you who trades it. To find new buyers for sulphonamides, search the 2935 code and open the records.
EximDataX shows shipment-level import and export records from official customs sources. Coverage: 43 direct customs feeds plus 184 mirror-derived countries. Named buyers and named suppliers are available in 38 of the 43 direct markets. Most markets refresh weekly and some refresh daily.
You can search by HS code to see who imports and exports a product, and book a free demo.
Related
- Chapter 29 organic chemicals
- HS 2930 organo-sulphur compounds
- HS 2934 nucleic acids and heterocyclic compounds
- HS 2936 provitamins and vitamins
- HS 2941 antibiotics
- HS 2942 organic compounds n.e.c.
- sulphonamides import data
- sulphonamides export data
- find sulphonamide buyers
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- HS code classifier
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Nearby headings in Chapter 29
- 2929Nitrogen-function compounds, n.e.c. in chapter 292 codes
- 2930Organo-sulphur compounds8 codes
- 2931Other organo-inorganic compounds17 codes
- 2932Heterocyclic compounds with oxygen hetero-atom(s) only13 codes
- 2933Heterocyclic compounds with nitrogen hetero-atom(s) only27 codes
- 2934Nucleic acids and their salts, whether or not chemically defined; other…6 codes
- 2936Provitamins, vitamins; natural or reproduced by synthesis (including natural…10 codes
- 2937Hormones, prostaglandins, thromboxanes and leukotrienes, natural or…9 codes
- 2938Glycosides, natural or reproduced by synthesis, and their salts, ethers…2 codes
- 2939Alkaloids; natural or reproduced by synthesis, and their salts, ethers…19 codes
- 2940Sugars, chemically pure, other than sucrose, lactose, maltose, glucose and…1 code
- 2941Antibiotics6 codes
Who ships under 2935?
EximDataX tracks the live import–export records filed under this heading and the 6 codes beneath it: named buyers, suppliers, quantities and values from official customs feeds.
Section VI: Products of the Chemical or Allied Industries, chapters 28–38.
HS Code 2935: common questions
What products are classified under HSN 2935?
Heading 2935 is for sulphonamides only. Antibiotics are not here. They belong to heading 2941.
What is the HS code for perfluorooctane sulphonamides?
Four named compounds have their own codes: 293510, 293520, 293530 and 293540.
What is the HS code for other sulphonamides?
Use 293590. It covers sulphonamides that are not named in the other codes of heading 2935.
Is HSN code 2935 the same as HS code 2935?
Yes, the first digits match. Both follow the Harmonized System. Countries may add extra digits for their own tariff lines.
How do I find who imports and exports sulphonamides?
Search the 2935 code in the import data and export data sections of EximDataX. The buyer data and supplier data pages help you go from a code to companies.
Where can I find duty rates for sulphonamides?
This page does not list duty rates, because each country sets its own. Confirm your code with the HS code classifier, then read the tariff of your destination country.
See what your buyers are buying.Then decide.
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