Chapter 29 · Organic chemicals · Section 6
HS Code 2935.90
Other
Heading 2935: Sulfonamides
US duty (general)
Free - 6.5%
US HTS lines
14
EU CN codes
3
UK commodity codes
40
Unit
kg
US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources
United States - HTS lines under 2935.90
Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.
| HTS code | Description | General | Special | Other | Unit |
|---|---|---|---|---|---|
| 2935.90.06 | 4-Amino-6-chloro-m-benzenedisulfonamide and Methyl-4-aminobenzenesulfonylcarbamate (Asulam) | 6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 41% | kg |
| 2935.90.10 | 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 | 6.5% | Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 41% | kg |
| 2935.90.13 | (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 | Free | - | 15.4¢/kg + 57.5% | kg |
| 2935.90.15 | o-Toluenesulfonamide | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL, JO, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 57.5% | kg |
| 2935.90.20 |
Other > Fast color bases and fast color salts |
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 54.5% | kg |
| 2935.90.29 |
Drugs > Anti-infective agents > Acetylsulfaguanidine |
Free | - | 15.4¢/kg + 96% | kg |
| 2935.90.30 |
Drugs > Anti-infective agents > Sulfamethazine |
Free | - | 15.4¢/kg + 80% | kg |
| 2935.90.32 |
Drugs > Anti-infective agents > Acetylsulfisoxazole; Sulfacetamide, sodium; and Sulfamethazine, sodium |
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 96% | kg |
| 2935.90.33 |
Drugs > Anti-infective agents > Sulfathiazole and Sulfathiazole, sodium |
Free | - | 15.4¢/kg + 133% | kg |
| 2935.90.42 |
Drugs > Anti-infective agents > Salicylazosulfapyridine (Sulfasalazine); Sulfadiazine; Sulfaguanidine; Sulfamerizine; and Sulfapyridine |
Free | - | 15.4¢/kg + 128.5% | kg |
| 2935.90.48 |
Drugs > Anti-infective agents > Other |
6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 96% | kg |
| 2935.90.60 |
Drugs > Anti-infective agents > Other |
6.5% | Free (A+,AU,BH,CL,CO,D, E,IL, JO,K, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 45% | kg |
| 2935.90.75 |
Other > Other > Products described in additional U.S. note 3 to section VI |
6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 57.5% | kg |
| 2935.90.95 |
Other > Other > Other |
6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 57.5% | kg |
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Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.
European Union - CN codes under 2935.90
Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.
| CN code | Description | |
|---|---|---|
| 2935 90 30 | 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; metosulam (ISO) | EU duty (TARIC) → |
| 2935 90 90 | Other | EU duty (TARIC) → |
| 2935 90 00 | Other | EU duty (TARIC) → |
United Kingdom - commodity codes under 2935.90
Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.
| Commodity code | Description | |
|---|---|---|
| 2935 90 00 00 | Other | UK duty & VAT → |
| 2935 90 30 00 | 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; metosulam (ISO) | UK duty & VAT → |
| 2935 90 90 00 | Other | UK duty & VAT → |
| 2935 90 90 10 | Florasulam (ISO) (CAS RN 145701-23-1) | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 2935 90 90 20 | Toluenesulphonamides | UK duty & VAT → |
| 2935 90 90 21 | Encorafenib (INN) (CAS 1269440-17-6) with a purity by weight of 99 % or more | UK duty & VAT → |
| 2935 90 90 22 | Methyl 2-(chlorosulfonyl)-4-(methylsulfonamidomethyl)benzoate (CAS RN 393509-79-0) with a purity by weight of 90 % or more | UK duty & VAT → |
| 2935 90 90 23 | N-[4-(2-Chloroacetyl)phenyl]methanesulphonamide (CAS RN 64488-52-4) | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 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) | UK duty & VAT → |
| 2935 90 90 29 | Vemurafenib (INN) (CAS RN 918504-65-1) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2935 90 90 30 | 6-Aminopyridine-2-sulfonamide (CAS RN 75903-58-1) | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 2935 90 90 33 | 4-Chloro-3-pyridinesulphonamide (CAS RN 33263-43-3) | UK duty & VAT → |
| 2935 90 90 37 | 1,3-Dimethyl-1H-pyrazole-4-sulfonamide (CAS RN 88398-53-2) | UK duty & VAT → |
| 2935 90 90 40 | Venetoclax (INN) (CAS 1257044-40-8) | UK duty & VAT → |
| 2935 90 90 41 | Lenacapavir sodium (INNM) (CAS RN 2283356-12-5) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2935 90 90 42 | Penoxsulam (ISO) (CAS RN 219714-96-2) | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 2935 90 90 45 | Rimsulfuron (ISO) (CAS RN 122931-48-0) | UK duty & VAT → |
| 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) | UK duty & VAT → |
| 2935 90 90 50 | 4,4'-Oxydi(benzenesulphonohydrazide) (CAS RN 80-51-3) | UK duty & VAT → |
| 2935 90 90 53 | 2,4-Dichloro-5-sulphamoylbenzoic acid (CAS RN 2736-23-4) | UK duty & VAT → |
| 2935 90 90 54 | Propoxycarbazone-sodium (ISO) (CAS RN 181274-15-7) with a purity by weight of 95 % or more | UK duty & VAT → |
| 2935 90 90 55 | Thifensulfuron-methyl (ISO) (CAS RN 79277-27-3) | UK duty & VAT → |
| 2935 90 90 57 | N-{2-[(phenylcarbamoyl)amino]phenyl}benzenesulphonamide (CAS RN 215917-77-4) | UK duty & VAT → |
| 2935 90 90 59 | Flazasulfuron (ISO) (CAS RN 104040-78-0) with a purity of 94 % by weight or more | UK duty & VAT → |
| 2935 90 90 63 | Nicosulphuron (ISO), (CAS RN 111991-09-4) of a purity by weight of 91 % or more | UK duty & VAT → |
| 2935 90 90 65 | Tribenuron-methyl (ISO) (CAS RN 101200-48-0) | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 2935 90 90 79 | 4-[[(2-Methoxybenzoyl)amino]sulfonyl]benzoyl chloride (CAS RN 816431-72-8) | UK duty & VAT → |
| 2935 90 90 80 | 4-Chloro-3-sulphamoylbenzoic acid (CAS RN 1205-30-7) with a purity by weight of 97 % or more | UK duty & VAT → |
| 2935 90 90 88 | N-(2-(4-Amino-N-ethyl-m-toluidino)ethyl)methanesulphonamide sesquisulphate monohydrate (CAS RN 25646-71-3) | UK duty & VAT → |
| 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) | UK duty & VAT → |
| 2935 90 90 99 | Other | UK duty & VAT → |
Not a customs ruling. Classification is determined by the importing country's customs authority and depends on the exact product. This page is reference information from official published schedules, not legal advice. For a binding decision, request a ruling (US: CBP CROSS · UK: HMRC ATaR · EU: BTI).
Other subheadings in 2935
2935.00 2935 Sulphonamides
2935.10 N-Methyl perfluorooctane sulfonamide
2935.20 N-Ethyl perfluorooctane sulfonamide
2935.30 N-Ethyl -N-(2-hydroxyethyl)perfluorooctane sulfonamide
2935.40 N-(2-hydroxyethyl)-N-methyl perfluorooctane sulfonamide
2935.50 Other perfluorooctane sulfonamides
2935.90 Other
Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.