美国 · 品目· 27 个子目· 133 个税号
2933仅含氮杂原子的杂环化合物
Heterocyclic compounds with nitrogen heteroatom(s) only
子目（6 位 WCO 统一）
293311非那宗(安替比林)及其衍生物→293319其他→293321乙内酰脲及其衍生物→293329其他→293331吡啶及其盐→293332哌啶及其盐→293333含有未稠合吡啶环的化合物(不论是否氢化)→293334其他芬太尼及其衍生物→2933353-奎宁环醇→2933364-苯胺基-N-苯乙基哌啶(ANPP)→293337N-苯乙基-4-哌啶酮(NPP)→293339含有未稠合吡啶环的化合物(不论是否氢化)→293341左啡诺(INN)及其盐→293349喹啉或异喹啉环系化合物(未稠合，不论是否氢化)→293352丙二酰脲(巴比妥酸)及其盐→293353嘧啶环或哌嗪环化合物(不论是否氢化)→293354丙二酰脲(巴比妥酸)的其他衍生物；其盐→293355洛普唑仑、美克洛酮、甲喹酮、齐培丙醇及其盐(INN)→293359含有嘧啶环或哌嗪环的化合物→293361三聚氰胺→293369其他→293371己内酰胺→293372氯巴占和甲乙哌啶酮→293379其他内酰胺→293391其他→293392甲基谷硫磷→293399其他→
美国税号（10 位）
本品目下 美国海关的全部细分税号与首要税率
| HS 编码 | 商品描述 | 首要税率 |
|---|---|---|
| 2933.11.00.00 | Phenazone (Antipyrine) and its derivatives | 6.5% |
| 2933.19.04.00 | Aminomethylphenylpyrazole (Phenylmethylaminopyrazole); and 3-Methyl-1-(p-tolyl)-2-pyrazolin-5-one (p-Tolyl methyl pyrazolone) | Free |
| 2933.19.08.00 | 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% |
| 2933.19.15.00 | 1,2-Dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate (Difenzoquat methyl sulfate) | Free |
| 2933.19.18.00 | 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 |
| 2933.19.23.00 | Pesticides | 6.5% |
| 2933.19.30 | Photographic chemicals | 6.5% |
| 2933.19.30.10 | Couplers, for use in color negative photographic paper | 6.5% |
| 2933.19.30.95 | Other | 6.5% |
| 2933.19.35.00 | Drugs | 6.5% |
| 2933.19.37.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.19.43.00 | Other | 6.5% |
| 2933.19.45.00 | Drugs | 3.7% |
| 2933.19.70.00 | 3-Methyl-5-pyrazolone | Free |
| 2933.19.90.00 | Other | 6.5% |
| 2933.21.00.00 | Hydantoin and its derivatives | 6.5% |
| 2933.29.05.00 | 1-[1-((4-Chloro-2-(trifluoromethyl)phenyl)- imino)-2-propoxyethyl]-1H-imidazole (Triflumizole); and Ethylene thiourea | Free |
| 2933.29.10.00 | 2-Phenylimidazole | 5.8% |
| 2933.29.20.00 | Drugs | 6% |
| 2933.29.35.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.29.43.00 | Other | 6.5% |
| 2933.29.45.00 | Drugs | 3.7% |
| 2933.29.60.00 | Imidazole | Free |
| 2933.29.90.00 | Other | 6.5% |
| 2933.31.00.00 | Pyridine and its salts | Free |
| 2933.32.10.00 | Piperidine | 6.5% |
| 2933.32.50.00 | Other | 6.5% |
| 2933.33.01.00 | 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 |
| 2933.34.00.00 | Other fentanyls and their derivatives | 6.5% |
| 2933.35.00.00 | 3-Quinuclidinol | 5.8% |
| 2933.36.00.00 | 4-Anilino-N-phenethylpiperidine (ANPP) | 6.5% |
| 2933.37.00.00 | N-Phenethyl-4-piperidone (NPP) | 6.5% |
| 2933.39.08.00 | 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 |
| 2933.39.10.00 | Collidines, lutidines and picolines | Free |
| 2933.39.20.00 | 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% |
| 2933.39.21.00 | Fungicides | 6.5% |
| 2933.39.23.00 | o-Paraquat dichloride | 6.5% |
| 2933.39.25.00 | Other | 6.5% |
| 2933.39.27.00 | Other | 6.5% |
| 2933.39.31.00 | Antidepressants, tranquilizers and other psychotherapeutic agents | 6.5% |
| 2933.39.41.00 | Other | 6.5% |
| 2933.39.61 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.39.61.10 | 3-Quinuclidinyl benzilate | 6.5% |
| 2933.39.61.20 | 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% |
| 2933.39.61.30 | 1,n-Bis[N-(3-dimethylcarbamoxy-α-picolyl)- N,N-dialkyl (≤ C10) ammonio]-alkane-(2,(n-1)- dione) dibromide (n=2-12) | 6.5% |
| 2933.39.61.91 | Other | 6.5% |
| 2933.39.92.00 | Other | 6.5% |
| 2933.41.00.00 | Levorphanol (INN) and its salts | Free |
| 2933.49.08.00 | 4,7-Dichloroquinoline | 6.5% |
| 2933.49.10.00 | Ethoxyquin (1,2-Dihydro-6-ethoxy-2,2,4- trimethylquinoline) | 6.5% |
| 2933.49.15.00 | 8-Methylquinoline and Isoquinoline | 5.8% |
| 2933.49.17.00 | Ethyl ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3- quinolinecarboxylate | Free |
| 2933.49.20.00 | 5-Chloro-7-iodo-8-quinolinol (Iodo chlo rhydroxy quin); Deco quinate; Diiodo hydroxy quin; and Oxy quinoline sulfate | 6.5% |
| 2933.49.26.00 | Other | 6.5% |
| 2933.49.30.00 | Pesticides | 6.5% |
| 2933.49.60.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.49.70.00 | Other | 6.5% |
| 2933.52.10.00 | Malonylurea (barbituric acid) | Free |
| 2933.52.90.00 | Other | Free |
| 2933.53.00.00 | 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 |
| 2933.54.00.00 | Other derivatives of malonylurea (barbituric acid); salts thereof | 3.7% |
| 2933.55.00.00 | Loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); salts thereof | Free |
| 2933.59.10.00 | Herbicides | 6.5% |
| 2933.59.15.00 | Other | 6.5% |
| 2933.59.18.00 | Other | 6.5% |
| 2933.59.21.00 | Antihistamines, including those principally used as anti-nauseants | 6.5% |
| 2933.59.22.00 | Nicarbazin; and Trimethoprim | 6.5% |
| 2933.59.36.00 | Other | 6.5% |
| 2933.59.46.00 | Antidepressants, tranquilizers and other psychotherapeutic agents | 6.5% |
| 2933.59.53.00 | Other | 6.5% |
| 2933.59.59.00 | Other | 3.7% |
| 2933.59.70.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.59.80.00 | Other | 6.5% |
| 2933.59.85.00 | 2-Amino-4-chloro-6-methoxy pyrimidine; 2-Amino-4,6-di methoxy pyrimidine; and 6-Methyl uracil | Free |
| 2933.59.95.00 | Other | 6.5% |
| 2933.61.00.00 | Melamine | 3.5% |
| 2933.69.20.00 | 2,4-Diamino-6-phenyl-1,3,5-triazine | Free |
| 2933.69.50.00 | Hexamethylenetetramine | 6.3% |
| 2933.69.60 | Other | 3.5% |
| 2933.69.60.10 | Cyanuric chloride | 3.5% |
| 2933.69.60.15 | Sodium dichloroisocyanurate and trichloroisocyanuric acid | 3.5% |
| 2933.69.60.21 | Other | 3.5% |
| 2933.69.60.30 | Products used principally for rubber processing | 3.5% |
| 2933.69.60.50 | Other | 3.5% |
| 2933.71.00.00 | 6-Hexanelactam (ε-Caprolactam) | 6.5% |
| 2933.72.00.00 | Clobazam (INN) and methyprylon (INN) | Free |
| 2933.79.04.00 | 2,5-Dihydro-3,6-diphenylpyrrolo-(3,4-c)- pyrrole-1,4-dione | Free |
| 2933.79.08.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.79.15.00 | Other | 6.5% |
| 2933.79.20.00 | N-Methyl-2-pyrrolidone; and 2-Pyrrolidone | 4.2% |
| 2933.79.30.00 | N-Vinyl-2-pyrrolidone, monomer | 5.5% |
| 2933.79.40.00 | 12-Aminododecanoic acid lactam | Free |
| 2933.79.85.00 | 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 |
| 2933.91.00.10 | Lorazepam (INN); salts thereof | Free |
| 2933.91.00.50 | Other | Free |
| 2933.92.00.00 | Azinphos-methyl | Free |
| 2933.99.01.00 | Butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate | Free |
| 2933.99.02.00 | 2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester | Free |
| 2933.99.05.00 | Acridine and indole | Free |
| 2933.99.06.00 | 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% |
| 2933.99.08.00 | 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 |
| 2933.99.11.00 | Carbazole | Free |
| 2933.99.12.00 | 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% |
| 2933.99.14.00 | 5-Amino-4-chloro-α-phenyl-3- pyridazinone | 6.5% |
| 2933.99.16.00 | o-Diquat dibromide (1,1'-Ethylene- 2,2'-dipyridylium dibromide) | Free |
| 2933.99.17.01 | Insecticides | 6.5% |
| 2933.99.22.00 | Other | 6.5% |
| 2933.99.24.00 | Photographic chemicals | 6.5% |
| 2933.99.26.00 | Antihistamines | 6.5% |
| 2933.99.42.00 | Acriflavine; Acriflavine hydrochloride; Carbadox; and Pyrazinamide | Free |
| 2933.99.46.00 | Other | 6.5% |
| 2933.99.51.00 | Hydralazine hydrochloride | Free |
| 2933.99.53.00 | Other | 6.5% |
| 2933.99.55 | Analgesics, antipyretics and nonhormonal anti-inflammatory agents | 6.5% |
| 2933.99.55.10 | Tolmetin | 6.5% |
| 2933.99.55.20 | Tolmetin sodium dihydrate | 6.5% |
| 2933.99.55.30 | Tolmetin sodium (anhydrous) | 6.5% |
| 2933.99.55.90 | Other | 6.5% |
| 2933.99.58.00 | Droperidol; and Imipramine hydrochloride | Free |
| 2933.99.61.00 | Other | 6.5% |
| 2933.99.65.00 | Anticonvulsants, hypnotics and sedatives | 6.5% |
| 2933.99.70.00 | Other | 6.5% |
| 2933.99.75.00 | Other | 6.5% |
| 2933.99.79.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2933.99.82 | Other | 6.5% |
| 2933.99.82.10 | Benzotriazole (CAS No. 95-14-7) | 6.5% |
| 2933.99.82.20 | Tolyltriazole (CAS No. 29385-43-1) | 6.5% |
| 2933.99.82.90 | Other | 6.5% |
| 2933.99.85.00 | 3-Amino-1,2,4-triazole | 3.7% |
| 2933.99.89.00 | Hexamethyleneimine | Free |
| 2933.99.90.00 | Drugs | 3.7% |
| 2933.99.97.01 | Other | 6.5% |