Norway
Duty free*
- Their lines1 Norwegian line
29.35.9000 Other
Norwegian tariff data checked Sept. 13, 2026.
Customs code · HS subheading 2935 90
Final code reached
This is a complete 8-digit customs code. Exports and Intrastat use it as it is. For an import into the EU, pick a 10-digit line below.
This code covers sulfonamides that are not perfluorooctane sulfonamides. It also excludes the specifically named indole compound and metosulam "ISO".
Official tariff text
Sulphonamides (excl. perfluorooctane sulphonamides, 3-{1-[7-"hexadecylsulphonylamino"-1H-indole-3-yl]-3-oxo-1H, 3H-naphtho[1,8-cd]pyran-1-yl}-N,N-dimethyl-1H-indole-7-sulphonamide and metosulam "ISO")
You are seeing what applies when you export from the EU. Switch above if you import.
You are seeing what applies when you import into the EU. Switch above if you export.
Your answer for export
You do not pick a 10-digit EU import line for an export declaration or Intrastat. The destination classifies the goods under its own tariff.
8 digits, ready
Selling to Norway, Great Britain and the United States
Norway, Great Britain and the United States use their own tariff lines under the 6-digit HS code. The rates below are what their customs charge on goods arriving from the EU. Match the goods against each country's own wording before you rely on a rate.
Norway
Duty free*
29.35.9000 Other
Norwegian tariff data checked Sept. 13, 2026.
Great Britain
The rate depends on the line.
2935 90 90 10 Florasulam (ISO) (CAS RN 145701-23-1)
Northern Ireland follows other rules.
UK tariff data checked Sept. 13, 2026.
United States
6.5% or 15.0%†
Depends on a question
2935.90.06.00 Sulfonamides, Other, 4-Amino-6-chloro-m-benzenedisulfonamide
The US importer of record files the entry.
US tariff data checked Sept. 16, 2026.
Norway splits the 6-digit category its own way, so these are Norway's own lines under it, not this EU code. Check your product against their wording; what Norwegian customs charges is shown per line.
29.35.9000
Other
Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.
What UK customs charges when goods like these arrive in Great Britain.
2935 90 90 10
Florasulam (ISO) (CAS RN 145701-23-1)
2935 90 90 16
2-Bromo-N-(4,5-dimethyl-1,2-oxazol-3-yl)-N-(methoxymethyl) benzene-1-sulfonamide (CAS RN 415697-57-3) with a purity by weight of 97 % or more
2935 90 90 18
4-Amino-2,5-dimethoxy-N-methylbenzenesulfonamide (CAS RN 49701-24-8) with a purity by weight of 98 % or more
2935 90 90 19
4-Amino-2,5-dimethoxy-N-phenylbenzenesulphonamide (CAS RN 52298-44-9) with a purity by weight of 98 % or more
2935 90 90 20
Toluenesulphonamides
2935 90 90 21
Encorafenib (INN) (CAS 1269440-17-6) with a purity by weight of 99 % or more
2935 90 90 22
Methyl 2-(chlorosulfonyl)-4-(methylsulfonamidomethyl)benzoate (CAS RN 393509-79-0) with a purity by weight of 90 % or more
2935 90 90 23
N-[4-(2-Chloroacetyl)phenyl]methanesulphonamide (CAS RN 64488-52-4)
2935 90 90 24
3-({[(4-methylphenyl)sulfonyl]carbamoyl}amino)phenyl 4-methylbenzenesulfonate (CAS RN 232938-43-1) with a purity by weight of 99 % or more
2935 90 90 26
5-(2-Fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrole-3-carbaldehyde (CAS RN 881677-11-8) with a purity by weight of 97 % or more
2935 90 90 27
Methyl (3R,5S,6E)-7-{4-(4-fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl)amino]pyrimidin-5-yl}-3,5-dihydroxyhept-6-enoate (CAS RN 147118-40-9)
2935 90 90 29
Vemurafenib (INN) (CAS RN 918504-65-1) with a purity by weight of 98 % or more
2935 90 90 30
6-Aminopyridine-2-sulfonamide (CAS RN 75903-58-1)
2935 90 90 31
5-(N-3-methylphenyl-sulfonylamido)-(N',N''-bis-(3-methylphenyl)-isophthalicacid-diamide) (CAS RN 2375645-78-4) with a purity by weight of 95 % or more
2935 90 90 32
4-Chloro-3-nitro-5-sulphamoylbenzoic acid (CAS RN 22892-96-2) with a purity by weight of 96 % or more
2935 90 90 33
4-Chloro-3-pyridinesulphonamide (CAS RN 33263-43-3)
2935 90 90 37
1,3-Dimethyl-1H-pyrazole-4-sulfonamide (CAS RN 88398-53-2)
2935 90 90 40
Venetoclax (INN) (CAS 1257044-40-8)
2935 90 90 41
Lenacapavir sodium (INNM) (CAS RN 2283356-12-5) with a purity by weight of 98 % or more
2935 90 90 42
Penoxsulam (ISO) (CAS RN 219714-96-2)
2935 90 90 44
4-[2-(7-Methoxy-4,4-dimethyl-1,3-dioxo-3,4-dihydroisoquinolin-2(1H)-yl)ethyl]bezenesulphonamide (CAS RN 33456-68-7) with a purity by weight of 99,5 % or more
2935 90 90 45
Rimsulfuron (ISO) (CAS RN 122931-48-0)
2935 90 90 48
(3R,5S,6E)-7-[4-(4-Fluorophenyl)-2-[methyl(methylsulfonyl)amino]-6-(propan-2-yl)pyrimidin-5-yl]-3,5-dihydroxyhept-6-enoic acid -- 1-[(R)-(4-chlorophenyl)(phenyl)methyl]piperazine (1:1), (CAS RN 1235588-99-4)
2935 90 90 50
4,4'-Oxydi(benzenesulphonohydrazide) (CAS RN 80-51-3)
2935 90 90 53
2,4-Dichloro-5-sulphamoylbenzoic acid (CAS RN 2736-23-4)
2935 90 90 54
Propoxycarbazone-sodium (ISO) (CAS RN 181274-15-7) with a purity by weight of 95 % or more
2935 90 90 55
Thifensulfuron-methyl (ISO) (CAS RN 79277-27-3)
2935 90 90 57
N-{2-[(phenylcarbamoyl)amino]phenyl}benzenesulphonamide (CAS RN 215917-77-4)
2935 90 90 59
Flazasulfuron (ISO) (CAS RN 104040-78-0) with a purity of 94 % by weight or more
2935 90 90 63
Nicosulphuron (ISO), (CAS RN 111991-09-4) of a purity by weight of 91 % or more
2935 90 90 65
Tribenuron-methyl (ISO) (CAS RN 101200-48-0)
2935 90 90 70
(4S)-4-hydroxy-2-(3-methoxypropyl)-3,4-dihydro-2H-thieno[3,2-e]thiazine-6-sulfonamide-1,1-dioxide (CAS RN 154127-42-1) with a purity by weight of 97 % or more
2935 90 90 79
4-[[(2-Methoxybenzoyl)amino]sulfonyl]benzoyl chloride (CAS RN 816431-72-8)
2935 90 90 80
4-Chloro-3-sulphamoylbenzoic acid (CAS RN 1205-30-7) with a purity by weight of 97 % or more
2935 90 90 88
N-(2-(4-Amino-N-ethyl-m-toluidino)ethyl)methanesulphonamide sesquisulphate monohydrate (CAS RN 25646-71-3)
2935 90 90 89
3-(3-Bromo-6-fluoro-2-methylindol-1-ylsulphonyl)-N,N-dimethyl-1,2,4-triazol-1-sulphonamide (CAS RN 348635-87-0)
2935 90 90 99
Other
These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.
Contains public sector information licensed under the Open Government Licence v3.0.
Source: UK Department for Business and Trade (data.api.trade.gov.uk).
What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.
2935.90.06.00
Sulfonamides, Other, 4-Amino-6-chloro-m-benzenedisulfonamide and Methyl-4-aminobenzenesulfonylcarbamate (Asulam)
2935.90.10.00
Sulfonamides, Other, 2-Amino-N-ethylbenzenesulfonanilide; 5-Amino-α,α,α-trifluorotoluene-2,4-disulfonamide; Benzenesulfonamide; Benzenesulfonyl hydrazide; 2-Chloro-4-amino-5-hydroxybenzenesulfonamide; 2,5-Dimethoxysulfanilanilide; and Metanilamide
2935.90.13.00
Sulfonamides, Other, (5‐[2‐Chloro‐4‐ (trifluoromethyl)phenoxy]‐N‐ (methylsulfonyl)‐2‐nitrobenzamide) (Fomesafen); N‐(2,6‐Dichloro‐3‐ methylphenyl)‐5‐ amino‐1,3,4‐triazole‐2‐sulfonamide; 2,4‐Dichloro‐5‐ sulfamoylbenzoic acid; N‐Ethyl‐o‐ toluenesulfonamide; N‐Ethyl‐p‐toluenesulfonamide; 7-(Hexadecylsulfonylamino) ‐1H‐indole; Methyl 5‐{[(4,6‐dimethoxy‐2‐pyrimidinyl)amino]‐ carbonylaminosulfonyl} ‐3‐chloro‐1‐methyl‐1H‐pyrazole‐4‐carboxylate (Halosulfuron methyl); and Mixtures of ortho‐ and para-toluenesulfonamides
2935.90.15.00
Sulfonamides, Other, o-Toluenesulfonamide
2935.90.20.00
Sulfonamides, Other, Fast color bases and fast color salts
2935.90.29.00
Sulfonamides, Other, Drugs, Anti-infective agents, Acetylsulfaguanidine
2935.90.30.00
Sulfonamides, Other, Drugs, Anti-infective agents, Sulfamethazine
2935.90.32.00
Sulfonamides, Other, Drugs, Anti-infective agents, Acetylsulfisoxazole; Sulfacetamide, sodium; and Sulfamethazine, sodium
2935.90.33.00
Sulfonamides, Other, Drugs, Anti-infective agents, Sulfathiazole and Sulfathiazole, sodium
2935.90.42.00
Sulfonamides, Other, Drugs, Anti-infective agents, Salicylazosulfapyridine (Sulfasalazine); Sulfadiazine; Sulfaguanidine; Sulfamerizine; and Sulfapyridine
2935.90.48.00
Sulfonamides, Other, Drugs, Anti-infective agents, Other
2935.90.60.00
Sulfonamides, Other, Drugs, Other
2935.90.75.00
Sulfonamides, Other, Products described in additional U.S. note 3 to section VI
2935.90.95.00
Sulfonamides, Other
Anti-dumping and countervailing duties, US import taxes and customs fees are not included.
The descriptions above are the US tariff texts, which the United States publishes in English only.
Source: the US International Trade Commission's Harmonized Tariff Schedule (hts.usitc.gov), public domain, and the measures published in the Federal Register.
This is a planning estimate from the US Harmonized Tariff Schedule (revision shown) and the published Federal Register measures as of the date shown, for a shipment of EU origin. It is not a customs entry, legal advice or a broker's opinion, and tariffs.help is not a US-licensed customs broker. The US importer of record or their broker confirms the classification, origin, value and the duty due before filing.
Before you use the code
The code can be right while what you pay still changes, because of where the goods come from, when they arrive, or extra EU measures.
On an EU import declaration
37 import lines
When these goods are imported into the EU, the declaration needs a 10-digit code. Under 2935 90 90 the EU tariff has 37 lines, each with its own wording.
You or your customs agent pick the line whose wording fits the goods; the last line, "Other", covers what none of the specific wordings describe.
2935 90 90 10
Florasulam (ISO) (CAS RN 145701-23-1)
2935 90 90 16
2-Bromo-N-(4,5-dimethyl-1,2-oxazol-3-yl)-N-(methoxymethyl) benzene-1-sulfonamide (CAS RN 415697-57-3) with a purity by weight of 97 % or more
2935 90 90 18
4-Amino-2,5-dimethoxy-N-methylbenzenesulfonamide (CAS RN 49701-24-8) with a purity by weight of 98 % or more
2935 90 90 19
4-Amino-2,5-dimethoxy-N-phenylbenzenesulphonamide (CAS RN 52298-44-9) with a purity by weight of 98 % or more
2935 90 90 20
Toluenesulphonamides
2935 90 90 21
Encorafenib (INN) (CAS 1269440-17-6) with a purity by weight of 99 % or more
2935 90 90 22
Methyl 2-(chlorosulfonyl)-4-(methylsulfonamidomethyl)benzoate (CAS RN 393509-79-0) with a purity by weight of 90 % or more
2935 90 90 23
N-[4-(2-Chloroacetyl)phenyl]methanesulphonamide (CAS RN 64488-52-4)
2935 90 90 24
3-({[(4-methylphenyl)sulfonyl]carbamoyl}amino)phenyl 4-methylbenzenesulfonate (CAS RN 232938-43-1) with a purity by weight of 99 % or more
2935 90 90 26
5-(2-Fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrole-3-carbaldehyde (CAS RN 881677-11-8) with a purity by weight of 97 % or more
2935 90 90 27
Methyl (3R,5S,6E)-7-{4-(4-fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl)amino]pyrimidin-5-yl}-3,5-dihydroxyhept-6-enoate (CAS RN 147118-40-9)
2935 90 90 29
Vemurafenib (INN) (CAS RN 918504-65-1) with a purity by weight of 98 % or more
2935 90 90 30
6-Aminopyridine-2-sulfonamide (CAS RN 75903-58-1)
2935 90 90 31
5-(N-3-methylphenyl-sulfonylamido)-(N',N''-bis-(3-methylphenyl)-isophthalicacid-diamide) (CAS RN 2375645-78-4) with a purity by weight of 95 % or more
2935 90 90 32
4-Chloro-3-nitro-5-sulphamoylbenzoic acid (CAS RN 22892-96-2) with a purity by weight of 96 % or more
2935 90 90 33
4-Chloro-3-pyridinesulphonamide (CAS RN 33263-43-3)
2935 90 90 37
1,3-Dimethyl-1H-pyrazole-4-sulfonamide (CAS RN 88398-53-2)
2935 90 90 40
Venetoclax (INN) (CAS 1257044-40-8)
2935 90 90 41
Lenacapavir sodium (INNM) (CAS RN 2283356-12-5) with a purity by weight of 98 % or more
2935 90 90 42
Penoxsulam (ISO) (CAS RN 219714-96-2)
2935 90 90 44
4-[2-(7-Methoxy-4,4-dimethyl-1,3-dioxo-3,4-dihydroisoquinolin-2(1H)-yl)ethyl]bezenesulphonamide (CAS RN 33456-68-7) with a purity by weight of 99,5 % or more
2935 90 90 45
Rimsulfuron (ISO) (CAS RN 122931-48-0)
2935 90 90 48
(3R,5S,6E)-7-[4-(4-Fluorophenyl)-2-[methyl(methylsulfonyl)amino]-6-(propan-2-yl)pyrimidin-5-yl]-3,5-dihydroxyhept-6-enoic acid -- 1-[(R)-(4-chlorophenyl)(phenyl)methyl]piperazine (1:1), (CAS RN 1235588-99-4)
2935 90 90 50
4,4'-Oxydi(benzenesulphonohydrazide) (CAS RN 80-51-3)
2935 90 90 53
2,4-Dichloro-5-sulphamoylbenzoic acid (CAS RN 2736-23-4)
2935 90 90 54
Propoxycarbazone-sodium (ISO) (CAS RN 181274-15-7) with a purity by weight of 95 % or more
2935 90 90 55
Thifensulfuron-methyl (ISO) (CAS RN 79277-27-3)
2935 90 90 57
N-{2-[(phenylcarbamoyl)amino]phenyl}benzenesulphonamide (CAS RN 215917-77-4)
2935 90 90 59
Flazasulfuron (ISO) (CAS RN 104040-78-0) with a purity of 94 % by weight or more
2935 90 90 63
Nicosulphuron (ISO), (CAS RN 111991-09-4) of a purity by weight of 91 % or more
2935 90 90 65
Tribenuron-methyl (ISO) (CAS RN 101200-48-0)
2935 90 90 70
(4S)-4-hydroxy-2-(3-methoxypropyl)-3,4-dihydro-2H-thieno[3,2-e]thiazine-6-sulfonamide-1,1-dioxide (CAS RN 154127-42-1) with a purity by weight of 97 % or more
2935 90 90 79
4-[[(2-Methoxybenzoyl)amino]sulfonyl]benzoyl chloride (CAS RN 816431-72-8)
2935 90 90 80
4-Chloro-3-sulphamoylbenzoic acid (CAS RN 1205-30-7) with a purity by weight of 97 % or more
2935 90 90 88
N-(2-(4-Amino-N-ethyl-m-toluidino)ethyl)methanesulphonamide sesquisulphate monohydrate (CAS RN 25646-71-3)
2935 90 90 89
3-(3-Bromo-6-fluoro-2-methylindol-1-ylsulphonyl)-N,N-dimethyl-1,2,4-triazol-1-sulphonamide (CAS RN 348635-87-0)
2935 90 90 99
Other
Duty free*
No import line matches that search.
A suspension is a lower rate the EU grants for specific products; whether your goods qualify depends on the line's wording and conditions.
Exports from the EU and Intrastat normally use the 8-digit code as it is.
EU tariff data of Sept. 13, 2026.
Rates, origin and documents
Besides the ordinary duty, the EU records these kinds of measure against this code. They are listed as signals only: whether one applies to your goods can depend on where they come from, who produced them, the exact product and the documents you present. No amounts are worked out here.
Data of Sept. 1, 2026
Preferential rates exist for goods originating in:
These rates apply to Economic Partnership Agreements; CARIFORUM except Haiti; GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms); OCTs (Overseas Countries and Territories); GSP - General arrangements except India; GSP+ (incentive arrangement for sustainable development and good governance).
Whether you can use one depends on the origin rules for the goods and on the documentation you can show.
Check this code in the official EU TARIC databaseA tariff quota is recorded for this code. This does not say whether any of the quota is still available. It covers goods originating in:
This is recorded on a more detailed code below this one, so it may not cover your goods. See the import lines under this code
Check this code in the official EU TARIC databaseImport restrictions are recorded for goods originating in:
The EU records document conditions on this code. What customs may ask for depends on where the goods come from, exactly what the product is and the customs procedure.
Proof of origin 2 conditions
If you claim a lower rate for goods from a country the EU has a trade agreement with, customs asks for proof of origin, for example a EUR.1 certificate or an origin declaration.
Sanctions and restricted regions 2 conditions
Some conditions come from EU sanctions rules. They matter when the goods are linked to a country or region the EU restricts trade with.
Product controls and permits 4 conditions
Depending on the exact product, customs may ask for a licence, a permit or a control certificate before the goods are released.
Other conditions 8 conditions
These conditions match none of the groups above. Whether customs asks for one depends on the goods, where they come from and the customs procedure.
One last classification check
Use this view if you are still unsure the code describes the product precisely.
Compare the sibling codes at this level before you settle on this one.
Worth comparing
Codes that sit close to this one, for when the material itself could be different.
That code is for perfluorooctanesulfonate, while this code is for sulfonamides other than the excluded substances.
That code names the specifically listed indole compound and metosulam "ISO", while this code excludes them.
Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with Toldstyrelsen, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.
Create a free account to keep the customs codes you care about in one place, and come back to them whenever you need them.