Chapter 29 · Organic chemicals · Section 6
HS Code 2933.99
Other
Heading 2933: Heterocyclic compounds with nitrogen hetero-atom(s) only
US duty (general)
Free - 6.5%
US HTS lines
29
EU CN codes
4
UK commodity codes
73
Unit
kg
US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources
United States - HTS lines under 2933.99
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 |
|---|---|---|---|---|---|
| 2933.99.01 |
Other > Aromatic or modified aromatic > Butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate |
Free | - | 15.4¢/kg + 50% | kg |
| 2933.99.02 |
Other > Aromatic or modified aromatic > 2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester |
Free | - | 15.4¢/kg + 64.5% | kg |
| 2933.99.05 |
Other > Aromatic or modified aromatic > Acridine and indole |
Free | - | Free | kg |
| 2933.99.06 |
Other > Aromatic or modified aromatic > α-Butyl-α-(4-chlorophenyl)-1H-1,2,4- triazole-1- propanenitrile (Myclobutanil); andα-[2-(4-Chlorophenyl)ethyl]-α-phenyl-1H- 1,2,4-triazole-1-propanenitrile (Fenbuconazole) |
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 64.5% | kg |
| 2933.99.08 |
Other > Aromatic or modified aromatic > Aceto acetyl-5-amino benz imidazolone; 3-(2H-Benzo triazol-2-yl)-5-(tert-butyl)-4- hydroxy benzene propanoic acid, C7-C9 branched or linear alkyl esters; 2-(2H-Benzotriazol-2-yl)-6-dodecyl-4- methyl phenol, in liquid form, branched and linear; and 1,3,3-Trimethyl-2-methyleneindoline |
Free | - | 15.4¢/kg + 52% | kg |
| 2933.99.11 |
Other > Aromatic or modified aromatic > Carbazole |
Free | - | 15.4¢/kg + 39.5% | kg |
| 2933.99.12 |
Other > Aromatic or modified aromatic > 6-Bromo-5-methyl-1H-imidazo[4,5-b]- pyridine; 2-sec-Butyl-4-tert-butyl-6-(benzotriazol-2- yl)phenol; 2-tert-Butyl-4-methyl-6-(5-chlorobenzotri- azol-2-yl)phenol; 2,4-Di-tert-butyl-6-(benzotriazol-2-yl)phenol; 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2- yl)phenol; 2,3-Dichloro-6-quinoxalinecarbonyl chloride; 1-Hydroxy-2-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid, sodium salt; Iminodibenzyl(10,11-dihydro-5H-dibenz- [b,f]azepine); Indoline; 3-Methylbenzo[f]quinoline; 2-Methylindoline; 2-Methylmercaptobenzimidazole; 1-Methyl-2-phenylindole; 1-Methylpyrazine; 2,4-Methylpyrazolic acid; 2-Phenylbenzimidazole; 2-Phenylindole; Tetramethylpyrazine; 2,3,5-Triphenyltetrazolium chloride;dl-Tryptophan; and Vinylcarbazole, monomer |
5.8% | Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 39.5% | kg |
| 2933.99.14 |
Other > Pesticides > 5-Amino-4-chloro-α-phenyl-3- pyridazinone |
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 40.5% | kg |
| 2933.99.16 |
Other > Pesticides > o-Diquat dibromide (1,1'-Ethylene- 2,2'-dipyridylium dibromide) |
Free | - | 15.4¢/kg + 40.5% | kg |
| 2933.99.17 |
Pesticides > Other > Insecticides 1 statistical line (10-digit)
|
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 64.5% | kg |
| 2933.99.22 |
Pesticides > Other > Other |
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 64.5% | kg |
| 2933.99.24 |
Pesticides > Other > Photographic chemicals |
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 50% | kg |
| 2933.99.26 |
Other > Drugs > Antihistamines |
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 |
| 2933.99.42 |
Drugs > Anti-infective agents > Acriflavine; Acriflavine hydrochloride; Carbadox; and Pyrazinamide |
Free | - | 15.4¢/kg + 46% | kg |
| 2933.99.46 |
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 + 67.5% | kg |
| 2933.99.51 |
Drugs > Cardiovascular drugs > Hydralazine hydrochloride |
Free | - | 15.4¢/kg + 47.5% | kg |
| 2933.99.53 |
Drugs > Cardiovascular drugs > 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 + 65% | kg |
| 2933.99.55 |
Drugs > Drugs primarily affecting the central nervous system > Analgesics, antipyretics and nonhormonal anti-inflammatory agents 4 statistical lines (10-digit)
|
6.5% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +47.5% | kg |
| 2933.99.58 |
Drugs primarily affecting the central nervous system > Antidepressants, tranquilizers and other psychotherapeutic agents > Droperidol; and Imipramine hydrochloride |
Free | - | 15.4¢/kg + 45.5% | kg |
| 2933.99.61 |
Drugs primarily affecting the central nervous system > Antidepressants, tranquilizers and other psychotherapeutic 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 + 149.5% | kg |
| 2933.99.65 |
Drugs primarily affecting the central nervous system > Antidepressants, tranquilizers and other psychotherapeutic agents > Anticonvulsants, hypnotics and sedatives |
6.5% | Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 48.5% | kg |
| 2933.99.70 |
Drugs primarily affecting the central nervous system > Antidepressants, tranquilizers and other psychotherapeutic 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 + 58.5% | kg |
| 2933.99.75 |
Drugs primarily affecting the central nervous system > Antidepressants, tranquilizers and other psychotherapeutic 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 |
| 2933.99.79 |
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 + 52% | kg |
| 2933.99.82 |
Other > Other > Other 3 statistical lines (10-digit)
|
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 + 52% | kg |
| 2933.99.85 |
Other > Other > 3-Amino-1,2,4-triazole |
3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2933.99.89 |
Other > Other > Hexamethyleneimine |
Free | - | 30.5% | kg |
| 2933.99.90 |
Other > Other > Drugs |
3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2933.99.97 |
Other > Other > Other 1 statistical line (10-digit)
|
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,L,MA,OM,P,PA,PE,S,SG) | 30.5% | kg |
Estimate the US duty runs in your browser · no caps
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 2933.99
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 | |
|---|---|---|
| 2933 99 80 | Other | EU duty (TARIC) → |
| 2933 99 50 | 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol | EU duty (TARIC) → |
| 2933 99 20 | Indole, 3-methylindole (skatole), 6-allyl-6,7-dihydro-5H-dibenz[c,e]azepine (azapetine), phenindamine (INN) and their salts; imipramine hydrochloride (INNM) | EU duty (TARIC) → |
| 2933 99 00 | Other | EU duty (TARIC) → |
United Kingdom - commodity codes under 2933.99
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 | |
|---|---|---|
| 2933 99 00 00 | Other | UK duty & VAT → |
| 2933 99 20 00 | Indole, 3-methylindole (skatole), 6-allyl-6,7-dihydro-5H-dibenz[c,e]azepine (azapetine), phenindamine (INN) and their salts; imipramine hydrochloride (INNM) | UK duty & VAT → |
| 2933 99 50 00 | 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol | UK duty & VAT → |
| 2933 99 80 00 | Other | UK duty & VAT → |
| 2933 99 80 01 | 3-Cyanoindole (CAS RN 5457-28-3) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 02 | (S)-1-Benzyl-3-pyrrolidinol (CAS RN 101385-90-4) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 03 | Tert-butyl 4-formyl-5-methoxy-7-methyl-1H-indole-1-carboxylate (CAS RN 1481631-51-9) with a purity by weight of 97 % or more | UK duty & VAT → |
| 2933 99 80 04 | (S)-2,5-Dihydro-pyrrole-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester (CAS RN 74844-93-2) with a purity by weight of 97 % or more | UK duty & VAT → |
| 2933 99 80 05 | 1,4,7,10-Tetraazacyclododecane (CAS RN 294-90-6) with a purity by weight of 96 % or more | UK duty & VAT → |
| 2933 99 80 07 | 4-(2-Oxo-2,3-dihydro-1H-benzimidazol-1-yl)butanoic acid (CAS RN 3273-68-5) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 08 | Prothioconazole (ISO) (CAS RN 178928-70-6) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 09 | 5,7-Difluoro-2-(4-fluorophenyl)-1H-indole (CAS RN 901188-04-3) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 10 | (R)-2-(2,5-difluorophenyl)pyrrolidine hydrochloride (CAS RN 1218935-60-4) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 13 | 5-Difluormethoxy-2-mercapto-1-H-benzimidazole (CAS RN 97963-62-7) | UK duty & VAT → |
| 2933 99 80 16 | Pyridate (ISO)(CAS RN 55512-33-9) with a purity by weight of 90 % or more | UK duty & VAT → |
| 2933 99 80 18 | 2-(2-Ethoxyphenyl)-5-methyl-7-propylimidazolo[5,1-f][1,2,4]-triazin-4(3H)-one (CAS RN 224789-21-3) with a purity by weight of 95 % or more | UK duty & VAT → |
| 2933 99 80 21 | 1-(Bis(dimethylamino)methylene)-1H-[1,2,3]triazolo[4,5-b]pyridinium 3-oxide hexafluorophosphate(V) (CAS RN 148893-10-1) | UK duty & VAT → |
| 2933 99 80 22 | Dibenz[b,f]azepine-5-carbonyl chloride (CAS RN 33948-22-0) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 23 | Tebuconazole (ISO) (CAS RN 107534-96-3) with a purity by weight of 95 % or more | UK duty & VAT → |
| 2933 99 80 24 | 1,3-Dihydro-5,6-diamino-2H-benzimidazol-2-one (CAS RN 55621-49-3) | UK duty & VAT → |
| 2933 99 80 25 | 6-(4-Benzylamino-3-nitrophenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one (CAS RN 77469-62-6) with a purity by weight of 95 % or more | UK duty & VAT → |
| 2933 99 80 26 | Benzotriazole-1-yl-oxy-tris-pyrrolidino-phosphonium hexafluorophosphate (CAS RN 128625-52-5) with a purity by weight of 97 % or more | UK duty & VAT → |
| 2933 99 80 27 | 5,6-Dimethylbenzimidazole (CAS RN 582-60-5) | UK duty & VAT → |
| 2933 99 80 28 | 7-(2-Methyl-4-nitrophenoxy)-[1,2,4]triazolo[1,5-a]pyridine (CAS RN 937263-44-0) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 29 | 1,1-Dimethylethyl (4S)-3-amino-2-(4-fluoro-3,5-dimethylphenyl)-2,4,6,7-tetrahydro-4-methyl-5H-pyrazolo[4,3-c]pyridine-5-carboxylate (CAS RN 2212021-59-3) with a purity by weight of 99 % or more | UK duty & VAT → |
| 2933 99 80 30 | Quizalofop-P-ethyl (ISO) (CAS RN 100646-51-3) | UK duty & VAT → |
| 2933 99 80 31 | 2-(2H-Benzotriazol-2-yl)-6-(2-phenylpropan-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol (CAS RN 73936-91-1) with a purity by weight of 97 % or more | UK duty & VAT → |
| 2933 99 80 32 | 1H-1,2,3-Triazole (CAS RN 288-36-8) or 2H-1,2,3-triazole (CAS RN 288-35-7) with a purity by weight of 99 % or more | UK duty & VAT → |
| 2933 99 80 33 | Penconazole (ISO) (CAS RN 66246-88-6) | UK duty & VAT → |
| 2933 99 80 34 | 2,4-Dihydro-5-methoxy-4-methyl-3H-1,2,4-triazol-3-on (CAS RN 135302-13-5) | UK duty & VAT → |
| 2933 99 80 35 | 2-[6-Methyl-2-(4-methylphenyl)imidazo[1,2-a]pyridin-3-yl]acetic acid (CAS RN 189005-44-5) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 37 | 8-Chloro-5,10-dihydro-11H-dibenzo [b,e] [1,4]diazepin-11-one (CAS RN 50892-62-1) | UK duty & VAT → |
| 2933 99 80 38 | (4aS,7aS)-Octahydro-1H-pyrrolo[3,4-b]pyridine (CAS RN 151213-40-0) | UK duty & VAT → |
| 2933 99 80 40 | trans-4-Hydroxy-L-proline (CAS RN 51-35-4) | UK duty & VAT → |
| 2933 99 80 41 | 5-[4'-(bromomethyl)biphenyl-2-yl]-1-trityl-1H-tetrazole (CAS RN 124750-51-2) | UK duty & VAT → |
| 2933 99 80 42 | (S)-2,2,4-Trimethylpyrrolidine hydrochloride (CAS RN 1897428-40-8) | UK duty & VAT → |
| 2933 99 80 43 | 4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylaniline (CAS RN 937263-71-3) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 44 | (2R,3R)-2-(2,4-Difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butane-2,3-diol methanesulfonate (CAS RN 1175536-50-1) with a purity by weight of 98 % or more | UK duty & VAT → |
| 2933 99 80 46 | (S)-indoline-2-carboxylic acid (CAS RN 79815-20-6) | UK duty & VAT → |
| 2933 99 80 48 | 5-Amino-6-methyl-2-benzimidazolone (CAS RN 67014-36-2) | 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 2933
2933.00 2933 Heterocyclic compounds with nitrogen hetero-atom(s) only
2933.11 Phenazone (Antipyrine) and its derivatives
2933.19 Other
2933.21 Hydantoin and its derivatives
2933.29 Other
2933.31 Pyridine and its salts
2933.32 Piperidine and its salts
2933.33 Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN
2933.34 Other fentanyls and their derivatives
2933.35 3-Quinuclidinol
2933.36 4-Anilino-N-phenethylpiperidine (ANPP)
2933.37 N-Phenethyl-4-piperidone (NPP)
2933.39 Other
2933.41 Levorphanol (INN) and its salts
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.