Heading 2933: Heterocyclic compounds with nitrogen hetero-atom(s) only:

From Chapter 29: Chapter 29

HTS Codes (10-Digit)

HTS Code Description General Duty
2933110000
Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure Phenazone (Antipyrine) and its derivatives
6.5%
2933190400
Aromatic or modified aromatic Aminomethylphenylpyrazole (Phenylmethylaminopyrazole); and 3-Methyl-1-(p-tolyl)-2-pyrazolin-5-one (p-Tolyl methyl pyrazolone)
Free
2933190800
Aromatic or modified aromatic 3-(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 Sulfinpyrazone
5.8%
2933191500
Aromatic or modified aromatic 1,2-Dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate (Difenzoquat methyl sulfate)
Free
2933191800
Aromatic or modified aromatic 2-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 pyrazolone
Free
2933192300
Other Pesticides
6.5%
2933193000
Other Photographic chemicals
6.5%
2933193010
Photographic chemicals Couplers, for use in color negative photographic paper
6.5%
2933193095
Photographic chemicals Other
6.5%
2933193500
Other Drugs
6.5%
2933193700
Other Products described in additional U.S. note 3 to section VI
6.5%
2933194300
Other Other
6.5%
2933194500
Other Drugs
3.7%
2933197000
Other 3-Methyl-5-pyrazolone
Free
2933199000
Other Other
6.5%
2933210000
Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure Hydantoin and its derivatives
6.5%
2933290500
Aromatic or modified aromatic 1-[1-((4-Chloro-2-(trifluoromethyl)phenyl)- imino)-2-propoxyethyl]-1H-imidazole (Triflumizole); and Ethylene thiourea
Free
2933291000
Aromatic or modified aromatic 2-Phenylimidazole
5.8%
2933292000
Other Drugs
6%
2933293500
Other Products described in additional U.S. note 3 to section VI
6.5%
2933294300
Other Other
6.5%
2933294500
Other Drugs
3.7%
2933296000
Other Imidazole
Free
2933299000
Other Other
6.5%
2933310000
Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure Pyridine and its salts
Free
2933321000
Piperidine and its salts Piperidine
6.5%
2933325000
Piperidine and its salts Other
6.5%
2933330100
Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure Alfentanil (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 thereof
Free
2933340000
Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure Other fentanyls and their derivatives
6.5%
2933350000
Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure 3-Quinuclidinol
5.8%
2933360000
Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure 4-Anilino-N-phenethylpiperidine (ANPP)
6.5%
2933370000
Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure N-Phenethyl-4-piperidone (NPP)
6.5%
2933390800
Other 1-(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 chloride
Free
2933391000
Other Collidines, lutidines and picolines
Free
2933392000
Other p-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 acid
5.8%
2933392100
Pesticides Fungicides
6.5%
2933392300
Herbicides o-Paraquat dichloride
6.5%
2933392500
Herbicides Other
6.5%
2933392700
Pesticides Other
6.5%
2933393100
Drugs Antidepressants, tranquilizers and other psychotherapeutic agents
6.5%
2933394100
Drugs Other
6.5%
2933396100
Other Products described in additional U.S. note 3 to section VI
6.5%
2933396110
Products described in additional U.S. note 3 to section VI 3-Quinuclidinyl benzilate
6.5%
2933396120
Products described in additional U.S. note 3 to section VI 1-[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)
6.5%
2933396130
Products described in additional U.S. note 3 to section VI 1,n-Bis[N-(3-dimethylcarbamoxy-α-picolyl)- N,N-dialkyl (≤ C10) ammonio]-alkane-(2,(n-1)- dione) dibromide (n=2-12)
6.5%
2933396191
Products described in additional U.S. note 3 to section VI Other
6.5%
2933399200
Other Other
6.5%
2933410000
Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused Levorphanol (INN) and its salts
Free
2933490800
Other 4,7-Dichloroquinoline
6.5%
2933491000
Other Ethoxyquin (1,2-Dihydro-6-ethoxy-2,2,4- trimethylquinoline)
6.5%
2933491500
Other 8-Methylquinoline and Isoquinoline
5.8%
2933491700
Other Ethyl ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3- quinolinecarboxylate
Free
2933492000
Drugs 5-Chloro-7-iodo-8-quinolinol (Iodo chlo rhydroxy quin); Deco quinate; Diiodo hydroxy quin; and Oxy quinoline sulfate
6.5%
2933492600
Drugs Other
6.5%
2933493000
Other Pesticides
6.5%
2933496000
Other Products described in additional U.S. note 3 to section VI
6.5%
2933497000
Other Other
6.5%
2933521000
Malonylurea (Barbituric acid) and its salts Malonylurea (barbituric acid)
Free
2933529000
Malonylurea (Barbituric acid) and its salts Other
Free
2933530000
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure Allobarbital (INN), amobarbital (INN), barbital (INN), butalbital (INN), butobarbital, cyclobarbital (INN), methylphenobarbital (INN), pentobarbital (INN), phenobarbital (INN), secbutabarbital (INN), secobarbital (INN) and vinylbital (INN); salts thereof
Free
2933540000
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure Other derivatives of malonylurea (barbituric acid); salts thereof
3.7%
2933550000
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure Loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); salts thereof
Free
2933591000
Aromatic or modified aromatic Herbicides
6.5%
2933591500
Aromatic or modified aromatic Other
6.5%
2933591800
Pesticides Other
6.5%
2933592100
Aromatic or modified aromatic Antihistamines, including those principally used as anti-nauseants
6.5%
2933592200
Anti-infective agents Nicarbazin; and Trimethoprim
6.5%
2933593600
Anti-infective agents Other
6.5%
2933594600
Aromatic or modified aromatic Antidepressants, tranquilizers and other psychotherapeutic agents
6.5%
2933595300
Aromatic or modified aromatic Other
6.5%
2933595900
Drugs Other
3.7%
2933597000
Aromatic or modified aromatic Products described in additional U.S. note 3 to section VI
6.5%
2933598000
Aromatic or modified aromatic Other
6.5%
2933598500
Other 2-Amino-4-chloro-6-methoxy pyrimidine; 2-Amino-4,6-di methoxy pyrimidine; and 6-Methyl uracil
Free
2933599500
Other Other
6.5%
2933610000
Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure Melamine
3.5%
2933692000
Other 2,4-Diamino-6-phenyl-1,3,5-triazine
Free
2933695000
Other Hexamethylenetetramine
6.3%
2933696000
Other Other
3.5%
2933696010
Other Cyanuric chloride
3.5%
2933696015
Pesticides Sodium dichloroisocyanurate and trichloroisocyanuric acid
3.5%
2933696021
Pesticides Other
3.5%
2933696030
Other Products used principally for rubber processing
3.5%
2933696050
Other
3.5%
2933710000
Lactams 6-Hexanelactam (ε-Caprolactam)
6.5%
2933720000
Lactams Clobazam (INN) and methyprylon (INN)
Free
2933790400
Aromatic or modified aromatic 2,5-Dihydro-3,6-diphenylpyrrolo-(3,4-c)- pyrrole-1,4-dione
Free
2933790800
Other Products described in additional U.S. note 3 to section VI
6.5%
2933791500
Other Other
6.5%
2933792000
Other N-Methyl-2-pyrrolidone; and 2-Pyrrolidone
4.2%
2933793000
Other N-Vinyl-2-pyrrolidone, monomer
5.5%
2933794000
Other 12-Aminododecanoic acid lactam
Free
2933798500
Other Other
6.5%
2933910000
Other Alprazolam (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 thereof
Free
2933910010
Alprazolam (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 thereof Lorazepam (INN); salts thereof
Free
2933910050
Alprazolam (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 thereof Other
Free
2933920000
Other Azinphos-methyl
Free
2933990100
Aromatic or modified aromatic Butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate
Free
2933990200
Aromatic or modified aromatic 2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester
Free
2933990500
Aromatic or modified aromatic Acridine and indole
Free
2933990600
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%
2933990800
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
2933991100
Aromatic or modified aromatic Carbazole
Free
2933991200
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%
2933991400
Pesticides 5-Amino-4-chloro-α-phenyl-3- pyridazinone
6.5%
2933991600
Pesticides o-Diquat dibromide (1,1'-Ethylene- 2,2'-dipyridylium dibromide)
Free
2933991701
Other Insecticides
6.5%
2933992200
Other Other
6.5%
2933992400
Other Photographic chemicals
6.5%
2933992600
Drugs Antihistamines
6.5%
2933994200
Anti-infective agents Acriflavine; Acriflavine hydrochloride; Carbadox; and Pyrazinamide
Free
2933994600
Anti-infective agents Other
6.5%
2933995100
Cardiovascular drugs Hydralazine hydrochloride
Free
2933995300
Cardiovascular drugs Other
6.5%
2933995500
Drugs primarily affecting the central nervous system Analgesics, antipyretics and nonhormonal anti-inflammatory agents
6.5%
2933995510
Analgesics, antipyretics and nonhormonal anti-inflammatory agents Tolmetin
6.5%
2933995520
Analgesics, antipyretics and nonhormonal anti-inflammatory agents Tolmetin sodium dihydrate
6.5%
2933995530
Analgesics, antipyretics and nonhormonal anti-inflammatory agents Tolmetin sodium (anhydrous)
6.5%
2933995590
Analgesics, antipyretics and nonhormonal anti-inflammatory agents Other
6.5%
2933995800
Antidepressants, tranquilizers and other psychotherapeutic agents Droperidol; and Imipramine hydrochloride
Free
2933996100
Antidepressants, tranquilizers and other psychotherapeutic agents Other
6.5%
2933996500
Drugs primarily affecting the central nervous system Anticonvulsants, hypnotics and sedatives
6.5%
2933997000
Drugs primarily affecting the central nervous system Other
6.5%
2933997500
Drugs Other
6.5%
2933997900
Other Products described in additional U.S. note 3 to section VI
6.5%
2933998200
Other Other
6.5%
2933998210
Other Benzotriazole (CAS No. 95-14-7)
6.5%
2933998220
Other Tolyltriazole (CAS No. 29385-43-1)
6.5%
2933998290
Other
6.5%
2933998500
Other 3-Amino-1,2,4-triazole
3.7%
2933998900
Other Hexamethyleneimine
Free
2933999000
Other Drugs
3.7%
2933999701
Other Other
6.5%