HTS Index

HTS 2933

Heterocyclic compounds with nitrogen hetero-atom(s) only

General rateNot stated for this line
What most imports pay — countries with normal trade relations, which is nearly all of them.
Special rateNot stated for this line
Only under a trade programme or agreement, and only if the goods qualify. The codes name the programmes.
Column 2 rateNot stated for this line
Only for the few countries without normal trade relations.

This line states no general duty rate, and none is inherited from the lines above it. That is not the same as duty-free: lines in Chapters 98 and 99 are provisions and qualifiers rather than ordinary commodities, and a rate may be stated elsewhere. Check the heading before assuming anything.

Additional duties may apply

This line references Chapter 99, where Section 301, Section 232 and other additional duties live. Those are charged on top of the general rate above and depend on where the goods were made. The rate shown here is therefore not the whole story for every origin.

What the Chapter 99 provisions are

Statistical breakouts

The 10-digit lines under this code. They are reporting categories; the duty is the one above unless a line states its own.

CodeDescriptionUnitsRate
2933.11.00.00Phenazone (Antipyrine) and its derivativeskg6.5%
2933.19Othersee above
2933.19.04.00Aminomethylphenylpyrazole (Phenylmethylaminopyrazole); and 3-Methyl-1-(p-tolyl)-2-pyrazolin-5-one (p-Tolyl methyl pyrazolone)kgFree
2933.19.08.003-(5-Amino-3-methyl-1H-pyrazol-1-yl)- benzenesulfonic acid; Amino-J-pyrazolone; 3-Amino-1-(2,4,6-trichlorophenyl)-5- pyrazolone; 3-Carboxy-1,4-sulfophenylpyrazol-5-one; 4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1- yl)benzenesulfonic acid; 1-(m-Chlorophenyl)-3-methyl-2-pyrazolin- 5-one;p-Chloropyrazolone; 1-(2',5'-Dichlorophenyl)-3-methyl-2- pyrazolin-5-one; 1-(o-Ethylphenyl)-3-methyl-2-pyrazolin- 5-one; 5-Imino-3-methyl-1-phenylpyrazole; 5-Imino-3-methyl-1-(m-sulfophenyl)- pyrazole; 2,4-Methylcarboxypyrazolic acid; Methylphenylpyrazolone; and Sulfinpyrazonekg5.8%
2933.19.15.001,2-Dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate (Difenzoquat methyl sulfate)kgFree
2933.19.18.002-Chloro-5-sulfophenylmethylpyrazolone; 2,5-Dichloro-4-(3-methyl-5-oxo-2- pyrazolin-1-yl) benzenesulfonic acid; Phenyl carbethoxypyrazolone;m-Sulfaminopyrazolone (m-Sulfamido- phenyl methyl pyrazolone); and 1-(p-Sulfophenyl)-3-methyl pyrazolonekgFree
2933.19.23.00Pesticideskg6.5%
2933.19.30Photographic chemicals6.5%
2933.19.30.10Couplers, for use in color negative photographic paperkg6.5%
2933.19.30.95Otherkg6.5%
2933.19.35.00Drugskg6.5%
2933.19.37.00Products described in additional U.S. note 3 to section VIkg6.5%
2933.19.43.00Otherkg6.5%
2933.19.45.00Drugskg3.7%
2933.19.70.003-Methyl-5-pyrazolonekgFree
2933.19.90.00Otherkg6.5%
2933.21.00.00Hydantoin and its derivativeskg6.5%
2933.29Othersee above
2933.29.05.001-[1-((4-Chloro-2-(trifluoromethyl)phenyl)- imino)-2-propoxyethyl]-1H-imidazole (Triflumizole); and Ethylene thioureakgFree
2933.29.10.002-Phenylimidazolekg5.8%
2933.29.20.00Drugskg6%
2933.29.35.00Products described in additional U.S. note 3 to section VIkg6.5%
2933.29.43.00Otherkg6.5%
2933.29.45.00Drugskg3.7%
2933.29.60.00ImidazolekgFree
2933.29.90.00Otherkg6.5%
2933.31.00.00Pyridine and its saltskgFree
2933.32Piperidine and its saltssee above
2933.32.10.00Piperidinekg6.5%
2933.32.50.00Otherkg6.5%
2933.33.01.00Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN), remifentanil (INN) and trimeperidine (INN); salts thereofkgFree
2933.34.00.00Other fentanyls and their derivativeskg6.5%
2933.35.00.003-Quinuclidinolkg5.8%
2933.36.00.004-Anilino-N-phenethylpiperidine (ANPP)kg6.5%
2933.37.00.00N-Phenethyl-4-piperidone (NPP)kg6.5%
2933.39Othersee above
2933.39.08.001-(3-Sulfo propyl) pyridinium hydroxide;N,N'-Bis (2,2,6,6-tetra methyl-4-piperidinyl)-1,6- hexane diamine; 3,5-Dimethyl-2-hydroxy methyl-4-methoxy- pyridine (pyrmethyl alcohol); Dipenta methylene thiuram tetra sulfide; 2H-Indol-2-one,1,3-dihydro-1-phenyl-3-(4- pyridinyl methylene); 4-Picolyl chloride hydro chloride; and Piperidino ethyl chloride hydro chloridekgFree
2933.39.10.00Collidines, lutidines and picolineskgFree
2933.39.20.00p-Chloro-2-benzylpyridine; 4-Chloro-1-methylpiperidine hydrochloride; 1,4-Dimethyl-6-hydroxy-3-cyanopyrid-2-one; Di-(2,2,6,6-tetramethyl-4-hydroxy- piperidine)sebacate; 2-Methyl-5-ethylpyridine; 4-Phenylpropylpyridine; α-Phenylpyridylacetic acid, methyl ester; Picolinic acid; 2-Pyridinecarboxaldehyde; and 2,5-Pyridinedicarboxylic acidkg5.8%
2933.39.21.00Fungicideskg6.5%
2933.39.23.00o-Paraquat dichloridekg6.5%
2933.39.25.00Otherkg6.5%
2933.39.27.00Otherkg6.5%
2933.39.31.00Antidepressants, tranquilizers and other psychotherapeutic agentskg6.5%
2933.39.41.00Otherkg6.5%
2933.39.61Products described in additional U.S. note 3 to section VI6.5%
2933.39.61.103-Quinuclidinyl benzilatekg6.5%
2933.39.61.201-[N,N-Dialkyl (≤C10)-N-(n-(hydroxyl, cyano, acetoxy)alkyl (≤C10)) ammonio]-n-n-[N-(3- dimethylcarbamoxy-α-picolinyl)-N,N-dialkyl (≤C10) ammonio]decane dibromide (n=1-8)kg6.5%
2933.39.61.301,n-Bis[N-(3-dimethylcarbamoxy-α-picolyl)- N,N-dialkyl (≤ C10) ammonio]-alkane-(2,(n-1)- dione) dibromide (n=2-12)kg6.5%
2933.39.61.40N-phenyl-4-piperidinamine (4-AP), tert-butyl 4-(phenylamino)piperidine-1-carboxylate (tert-butyl 4-anilinopiperidine-1-carboxylate, 1-boc-4-AP), norfentanyl (N-phenyl-N-(4-piperidyl)propionamide), piperidin-4-one (4-piperidone) and tert-butyl 4-oxopiperidine-1-carboxylate (1-boc-4-piperidone); salts thereofkg6.5%
2933.39.61.92Otherkg6.5%
2933.39.92.00Otherkg6.5%
2933.41.00.00Levorphanol (INN) and its saltskgFree
2933.49Othersee above
2933.49.08.004,7-Dichloroquinolinekg6.5%
2933.49.10.00Ethoxyquin (1,2-Dihydro-6-ethoxy-2,2,4- trimethylquinoline)kg6.5%
2933.49.15.008-Methylquinoline and Isoquinolinekg5.8%
2933.49.17.00Ethyl ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3- quinolinecarboxylatekgFree
2933.49.20.005-Chloro-7-iodo-8-quinolinol (Iodo chlo rhydroxy quin); Deco quinate; Diiodo hydroxy quin; and Oxy quinoline sulfatekg6.5%
2933.49.26.00Otherkg6.5%
2933.49.30.00Pesticideskg6.5%
2933.49.60.00Products described in additional U.S. note 3 to section VIkg6.5%
2933.49.70.00Otherkg6.5%
2933.52Malonylurea (Barbituric acid) and its saltssee above
2933.52.10.00Malonylurea (barbituric acid)kgFree
2933.52.90.00OtherkgFree
2933.53.00.00Allobarbital (INN), amobarbital (INN), barbital (INN), butalbital (INN), butobarbital, cyclobarbital (INN), methylphenobarbital (INN), pentobarbital (INN), phenobarbital (INN), secbutabarbital (INN), secobarbital (INN) and vinylbital (INN); salts thereofkgFree
2933.54.00.00Other derivatives of malonylurea (barbituric acid); salts thereofkg3.7%
2933.55.00.00Loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); salts thereofkgFree
2933.59Othersee above
2933.59.10.00Herbicideskg6.5%
2933.59.15.00Otherkg6.5%
2933.59.18.00Otherkg6.5%
2933.59.21.00Antihistamines, including those principally used as anti-nauseantskg6.5%
2933.59.22.00Nicarbazin; and Trimethoprimkg6.5%
2933.59.36.00Otherkg6.5%
2933.59.46.00Antidepressants, tranquilizers and other psychotherapeutic agentskg6.5%
2933.59.53.00Otherkg6.5%
2933.59.59.00Otherkg3.7%
2933.59.70.00Products described in additional U.S. note 3 to section VIkg6.5%
2933.59.80.00Otherkg6.5%
2933.59.85.002-Amino-4-chloro-6-methoxy pyrimidine; 2-Amino-4,6-di methoxy pyrimidine; and 6-Methyl uracilkgFree
2933.59.95.00Otherkg6.5%
2933.61.00.00Melaminekg3.5%
2933.69Othersee above
2933.69.20.002,4-Diamino-6-phenyl-1,3,5-triazinekgFree
2933.69.50.00Hexamethylenetetraminekg6.3%
2933.69.60Other3.5%
2933.69.60.10Cyanuric chloridekg3.5%
2933.69.60.15Sodium dichloroisocyanurate and trichloroisocyanuric acidkg3.5%
2933.69.60.21Otherkg3.5%
2933.69.60.30Products used principally for rubber processingkg3.5%
2933.69.60.50Otherkg3.5%
2933.71.00.006-Hexanelactam (ε-Caprolactam)kg6.5%
2933.72.00.00Clobazam (INN) and methyprylon (INN)kgFree
2933.79Other lactamssee above
2933.79.04.002,5-Dihydro-3,6-diphenylpyrrolo-(3,4-c)- pyrrole-1,4-dionekgFree
2933.79.08.00Products described in additional U.S. note 3 to section VIkg6.5%
2933.79.15.00Otherkg6.5%
2933.79.20.00N-Methyl-2-pyrrolidone; and 2-Pyrrolidonekg4.2%
2933.79.30.00N-Vinyl-2-pyrrolidone, monomerkg5.5%
2933.79.40.0012-Aminododecanoic acid lactamkgFree
2933.79.85.00Otherkg6.5%
2933.91.00Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereofFree
2933.91.00.10Lorazepam (INN); salts thereofkgFree
2933.91.00.50OtherkgFree
2933.92.00.00Azinphos-methylkgFree
2933.99Othersee above
2933.99.01.00Butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoatekgFree
2933.99.02.002-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl esterkgFree
2933.99.05.00Acridine and indolekgFree
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)kg6.5%
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-methyleneindolinekgFree
2933.99.11.00CarbazolekgFree
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, monomerkg5.8%
2933.99.14.005-Amino-4-chloro-α-phenyl-3- pyridazinonekg6.5%
2933.99.16.00o-Diquat dibromide (1,1'-Ethylene- 2,2'-dipyridylium dibromide)kgFree
2933.99.17.01Insecticideskg6.5%
2933.99.22.00Otherkg6.5%
2933.99.24.00Photographic chemicalskg6.5%
2933.99.26.00Antihistamineskg6.5%
2933.99.42.00Acriflavine; Acriflavine hydrochloride; Carbadox; and PyrazinamidekgFree
2933.99.46.00Otherkg6.5%
2933.99.51.00Hydralazine hydrochloridekgFree
2933.99.53.00Otherkg6.5%
2933.99.55Analgesics, antipyretics and nonhormonal anti-inflammatory agents6.5%
2933.99.55.10Tolmetinkg6.5%
2933.99.55.20Tolmetin sodium dihydratekg6.5%
2933.99.55.30Tolmetin sodium (anhydrous)kg6.5%
2933.99.55.90Otherkg6.5%
2933.99.58.00Droperidol; and Imipramine hydrochloridekgFree
2933.99.61.00Otherkg6.5%
2933.99.65.00Anticonvulsants, hypnotics and sedativeskg6.5%
2933.99.70.00Otherkg6.5%
2933.99.75.00Otherkg6.5%
2933.99.79.00Products described in additional U.S. note 3 to section VIkg6.5%
2933.99.82Other6.5%
2933.99.82.10Benzotriazole (CAS No. 95-14-7)kg6.5%
2933.99.82.20Tolyltriazole (CAS No. 29385-43-1)kg6.5%
2933.99.82.90Otherkg6.5%
2933.99.85.003-Amino-1,2,4-triazolekg3.7%
2933.99.89.00HexamethyleneiminekgFree
2933.99.90.00Drugskg3.7%
2933.99.97.01Otherkg6.5%

What changed

No recorded change to this line since we began reading the schedule daily. That is the ordinary state: USITC revises it fifteen to eighteen times a year, and most codes are untouched in any given revision.

Email me when this code changes

One email if the duty on 2933 moves, or the line is reworded or withdrawn. USITC publishes revisions without a calendar, and a rate change applies to goods entered from the day it takes effect.

Double opt-in. One email per change, unsubscribe in one click. No newsletter. Privacy policy.

Before you rely on this

Classification and the duties that finally apply to a shipment are a licensed customs broker's call. This page publishes the schedule as USITC does; it does not calculate what an entry will cost.

Source: Harmonized Tariff Schedule of the United States, U.S. International Trade Commission (public domain). Re-checked daily.