2933.99
6-digit headingOther
This is a 6-digit heading — a category, not a filing code. Pick the more specific code beneath it that best matches your goods; only a 10-digit statistical code can be used on a customs entry.
Duty rates
No rate is published at this level — check the specific 10-digit statistical code beneath it.
| Rate | Value and what it means |
|---|---|
| General rate (Column 1) | See 10-digit codeColumn 1 general Applies to most trading partners — the standard "normal trade relations" rate. |
| Special rate (Column 1) | —Trade programs The country letters in parentheses are free trade agreement and preference programs. If your goods qualify under one of them, that rate replaces the general rate. |
| Column 2 rate | —Non-NTR Reserved for the small group of countries that do not have normal trade relations with the US (currently Cuba, North Korea, Russia and Belarus). Almost no importer uses this column — if you are shipping from anywhere else, ignore it. |
| Unit of quantity | — How CBP expects the quantity to be reported on the entry summary. |
Where this sits in the schedule
The tariff schedule is read top-down: each line inherits the wording of the categories above it.
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Other:
Codes within Other
36 more specific lines fall under 2933.99.
- 2933.99.01.00Butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic:Free
- 2933.99.02.002-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic:Free
- 2933.99.05.00Acridine and indole10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic:Free
- 2933.99.06.00α-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)10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic:6.5%
- 2933.99.08.00Aceto 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-methyleneindoline10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic:Free
- 2933.99.11.00Carbazole10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic:Free
- 2933.99.12.006-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, monomer10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic:5.8%
- 2933.99.14.005-Amino-4-chloro-α-phenyl-3- pyridazinone10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Pesticides:6.5%
- 2933.99.16.00o-Diquat dibromide (1,1'-Ethylene- 2,2'-dipyridylium dibromide)10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Pesticides:Free
- 2933.99.17.01Insecticides10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Pesticides: > Other:6.5%
- 2933.99.22.00Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Pesticides: > Other:6.5%
- 2933.99.24.00Photographic chemicals10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other:6.5%
- 2933.99.26.00Antihistamines10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs:6.5%
- 2933.99.42.00Acriflavine; Acriflavine hydrochloride; Carbadox; and Pyrazinamide10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Anti-infective agents:Free
- 2933.99.46.00Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Anti-infective agents:6.5%
- 2933.99.51.00Hydralazine hydrochloride10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Cardiovascular drugs:Free
- 2933.99.53.00Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Cardiovascular drugs:6.5%
- 2933.99.55Analgesics, antipyretics and nonhormonal anti-inflammatory agents8-digit subheadingHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system:6.5%
- 2933.99.55.10Tolmetin10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system: > Analgesics, antipyretics and nonhormonal anti-inflammatory agents
- 2933.99.55.20Tolmetin sodium dihydrate10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system: > Analgesics, antipyretics and nonhormonal anti-inflammatory agents
- 2933.99.55.30Tolmetin sodium (anhydrous)10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system: > Analgesics, antipyretics and nonhormonal anti-inflammatory agents
- 2933.99.55.90Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system: > Analgesics, antipyretics and nonhormonal anti-inflammatory agents
- 2933.99.58.00Droperidol; and Imipramine hydrochloride10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system: > Antidepressants, tranquilizers and other psychotherapeutic agents:Free
- 2933.99.61.00Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system: > Antidepressants, tranquilizers and other psychotherapeutic agents:6.5%
- 2933.99.65.00Anticonvulsants, hypnotics and sedatives10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system:6.5%
- 2933.99.70.00Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system:6.5%
- 2933.99.75.00Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs:6.5%
- 2933.99.79.00Products described in additional U.S. note 3 to section VI10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Other:6.5%
- 2933.99.82Other8-digit subheadingHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Other:6.5%
- 2933.99.82.10Benzotriazole (CAS No. 95-14-7)10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Other: > Other
- 2933.99.82.20Tolyltriazole (CAS No. 29385-43-1)10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Other: > Other
- 2933.99.82.90Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Other: > Other
- 2933.99.85.003-Amino-1,2,4-triazole10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Other:3.7%
- 2933.99.89.00Hexamethyleneimine10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Other:Free
- 2933.99.90.00Drugs10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Other: > Other:3.7%
- 2933.99.97.01Other10-digit statistical codeHeterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Other: > Other:6.5%
Chapter 29: Organic Chemicals
Browse every code in this chapter to compare neighbouring classifications.
View Chapter 29Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.
Data loaded August 18, 2026.Check this chapter on hts.usitc.govReport an error with this codeHow this data is built