Analysis
Heading 2933 of the Harmonized Tariff Schedule covers heterocyclic compounds with nitrogen hetero-atom(s) only. It divides into 27 six-digit subheadings and 113 eight-digit tariff lines, with 128 ten-digit statistical suffixes below them.
The spread of 6.5 percentage points between the cheapest and dearest lines makes misclassification expensive here. The highest rate, 6.5%, applies to 2933.11.00 (phenazone (Antipyrine) and its derivatives) and 2933.19.23 (other: pesticides).
33 of its 113 lines with a percentage rate are duty-free at the general rate (29%) and 80 are dutiable, from duty-free up to 6.5%. The median line pays 6.5%.
Its median rate of 6.5% sits at the 83rd percentile of the headings in chapter 29.
The largest subheadings are 2933.99 (other, 29 lines), 2933.59 (other, 13 lines), 2933.19 (other, 12 lines) and 2933.39 (other, 11 lines).
By Census's concordance, most of its statistical lines are made by All Other Basic Organic Chemical Manufacturing (325199), Pharmaceutical Preparation Manufacturing (325412) and Medicinal and Botanical Manufacturing (325411). Those are the NAICS industries a US producer of these goods would report under.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 2933.11.00 | Phenazone (Antipyrine) and its derivatives | 6.5% |
| 2933.19.04 | Aminomethylphenylpyrazole (Phenylmethylaminopyrazole); and 3-Methyl-1-(p-tolyl)-2-pyrazolin-5-one (p-Tolyl methyl pyrazolone) | Free |
| 2933.19.08 | 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% |
| 2933.19.15 | 1,2-Dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate (Difenzoquat methyl sulfate) | Free |
| 2933.19.18 | 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 |
| 2933.19.23 | Other: pesticides | 6.5% |
| 2933.19.30 | Photographic chemicals | 6.5% |
| 2933.19.35 | Other: drugs | 6.5% |
| 2933.19.37 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.19.43 | Other: other | 6.5% |
| 2933.19.45 | Other: drugs | 3.7% |
| 2933.19.70 | 3-Methyl-5-pyrazolone | Free |
| 2933.19.90 | Other: other | 6.5% |
| 2933.21.00 | Hydantoin and its derivatives | 6.5% |
| 2933.29.05 | 1-[1-((4-Chloro-2-(trifluoromethyl)phenyl)- imino)-2-propoxyethyl]-1H-imidazole (Triflumizole); and Ethylene thiourea | Free |
| 2933.29.10 | Aromatic or modified aromatic: 2-Phenylimidazole | 5.8% |
| 2933.29.20 | Other: drugs | 6% |
| 2933.29.35 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.29.43 | Other: other | 6.5% |
| 2933.29.45 | Other: drugs | 3.7% |
| 2933.29.60 | Other: imidazole | Free |
| 2933.29.90 | Other: other | 6.5% |
| 2933.31.00 | Pyridine and its salts | Free |
| 2933.32.10 | Piperidine and its salts: piperidine | 6.5% |
| 2933.32.50 | Piperidine and its salts: other | 6.5% |
| 2933.33.01 | 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 |
| 2933.34.00 | Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: other fentanyls and their derivatives | 6.5% |
| 2933.35.00 | Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: 3-Quinuclidinol | 5.8% |
| 2933.36.00 | 4-Anilino-N-phenethylpiperidine (ANPP) | 6.5% |
| 2933.37.00 | N-Phenethyl-4-piperidone (NPP) | 6.5% |
| 2933.39.08 | 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 |
| 2933.39.10 | Collidines, lutidines and picolines | Free |
| 2933.39.20 | 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% |
| 2933.39.21 | Pesticides: fungicides | 6.5% |
| 2933.39.23 | o-Paraquat dichloride | 6.5% |
| 2933.39.25 | Herbicides: other | 6.5% |
| 2933.39.27 | Pesticides: other | 6.5% |
| 2933.39.31 | Antidepressants, tranquilizers and other psychotherapeutic agents | 6.5% |
| 2933.39.41 | Drugs: other | 6.5% |
| 2933.39.61 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.39.92 | Other: other | 6.5% |
| 2933.41.00 | Levorphanol (INN) and its salts | Free |
| 2933.49.08 | 4,7-Dichloroquinoline | 6.5% |
| 2933.49.10 | Ethoxyquin (1,2-Dihydro-6-ethoxy-2,2,4- trimethylquinoline) | 6.5% |
| 2933.49.15 | 8-Methylquinoline and Isoquinoline | 5.8% |
| 2933.49.17 | Ethyl ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3- quinolinecarboxylate | Free |
| 2933.49.20 | 5-Chloro-7-iodo-8-quinolinol (Iodo chlo rhydroxy quin); Deco quinate; Diiodo hydroxy quin; and Oxy quinoline sulfate | 6.5% |
| 2933.49.26 | Drugs: other | 6.5% |
| 2933.49.30 | Other: pesticides | 6.5% |
| 2933.49.60 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.49.70 | Other: other | 6.5% |
| 2933.52.10 | Malonylurea (barbituric acid) | Free |
| 2933.52.90 | Malonylurea (Barbituric acid) and its salts: other | Free |
| 2933.53.00 | 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 |
| 2933.54.00 | 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% |
| 2933.55.00 | Loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); salts thereof | Free |
| 2933.59.10 | Aromatic or modified aromatic: herbicides | 6.5% |
| 2933.59.15 | Aromatic or modified aromatic: other | 6.5% |
| 2933.59.18 | Pesticides: other | 6.5% |
| 2933.59.21 | Antihistamines, including those principally used as anti-nauseants | 6.5% |
| 2933.59.22 | Nicarbazin; and Trimethoprim | 6.5% |
| 2933.59.36 | Anti-infective agents: other | 6.5% |
| 2933.59.46 | Antidepressants, tranquilizers and other psychotherapeutic agents | 6.5% |
| 2933.59.53 | Aromatic or modified aromatic: other | 6.5% |
| 2933.59.59 | Drugs: other | 3.7% |
| 2933.59.70 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.59.80 | Aromatic or modified aromatic: other | 6.5% |
| 2933.59.85 | 2-Amino-4-chloro-6-methoxy pyrimidine; 2-Amino-4,6-di methoxy pyrimidine; and 6-Methyl uracil | Free |
| 2933.59.95 | Other: other | 6.5% |
| 2933.61.00 | Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure: melamine | 3.5% |
| 2933.69.20 | 2,4-Diamino-6-phenyl-1,3,5-triazine | Free |
| 2933.69.50 | Hexamethylenetetramine | 6.3% |
| 2933.69.60 | Other: other | 3.5% |
| 2933.71.00 | 6-Hexanelactam (ε-Caprolactam) | 6.5% |
| 2933.72.00 | Clobazam (INN) and methyprylon (INN) | Free |
| 2933.79.04 | 2,5-Dihydro-3,6-diphenylpyrrolo-(3,4-c)- pyrrole-1,4-dione | Free |
| 2933.79.08 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.79.15 | Other: other | 6.5% |
| 2933.79.20 | N-Methyl-2-pyrrolidone; and 2-Pyrrolidone | 4.2% |
| 2933.79.30 | N-Vinyl-2-pyrrolidone, monomer | 5.5% |
| 2933.79.40 | 12-Aminododecanoic acid lactam | Free |
| 2933.79.85 | Other: other | 6.5% |
| 2933.91.00 | 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 |
| 2933.92.00 | Other: azinphos-methyl | Free |
| 2933.99.01 | Butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate | Free |
| 2933.99.02 | 2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester | Free |
| 2933.99.05 | Acridine and indole | Free |
| 2933.99.06 | 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% |
| 2933.99.08 | 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 |
| 2933.99.11 | Aromatic or modified aromatic: carbazole | Free |
| 2933.99.12 | 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% |
| 2933.99.14 | 5-Amino-4-chloro-α-phenyl-3- pyridazinone | 6.5% |
| 2933.99.16 | o-Diquat dibromide (1,1'-Ethylene- 2,2'-dipyridylium dibromide) | Free |
| 2933.99.17 | Other: insecticides | 6.5% |
| 2933.99.22 | Other: other | 6.5% |
| 2933.99.24 | Photographic chemicals | 6.5% |
| 2933.99.26 | Drugs: antihistamines | 6.5% |
| 2933.99.42 | Acriflavine; Acriflavine hydrochloride; Carbadox; and Pyrazinamide | Free |
| 2933.99.46 | Anti-infective agents: other | 6.5% |
| 2933.99.51 | Hydralazine hydrochloride | Free |
| 2933.99.53 | Cardiovascular drugs: other | 6.5% |
| 2933.99.55 | Analgesics, antipyretics and nonhormonal anti-inflammatory agents | 6.5% |
| 2933.99.58 | Droperidol; and Imipramine hydrochloride | Free |
| 2933.99.61 | Antidepressants, tranquilizers and other psychotherapeutic agents: other | 6.5% |
| 2933.99.65 | Anticonvulsants, hypnotics and sedatives | 6.5% |
| 2933.99.70 | Drugs primarily affecting the central nervous system: other | 6.5% |
| 2933.99.75 | Drugs: other | 6.5% |
| 2933.99.79 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.99.82 | Other: other | 6.5% |
| 2933.99.85 | 3-Amino-1,2,4-triazole | 3.7% |
| 2933.99.89 | Hexamethyleneimine | Free |
| 2933.99.90 | Other: drugs | 3.7% |
| 2933.99.97 | Other: other | 6.5% |