Partida 2921: Compuestos con función amina
Tarifas de importación de Estados Unidos para la partida 2921. Los nombres de las subpartidas están en español; debajo de cada una aparecen los códigos de EE. UU. con su descripción oficial (en inglés) y su tarifa general.
Compuestos con función amina
Capítulo 29: Productos químicos orgánicos. Arancel revisado el 4 de octubre de 2026.
2921.11 Mono-, di- o trimetilamina y sus sales
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.11.00.00 | Methylamine, di- or trimethylamine and their salts | 3.7% |
2921.12 Clorhidrato de 2-cloroetil (N,N-dimetilamina)
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.12.01.00 | 2-(N,N-Dimethylamino)ethyl chloride hydrochloride | Libre (Free) |
2921.13 Clorhidrato de 2-cloroetil (N,N- dietilamina)
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.13.00.00 | 2-(N,N-Diethylamino)ethyl chloride hydrochloride | Libre (Free) |
2921.14 Clorhidrato de 2-cloroetil (N,N-diisopropilamina)
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.14.00.00 | 2-(N,N,-Diisopropylamino)ethyl chloride hydrochloride | 6.5% |
2921.19 Los demás
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.19 | Other: | |
| 2921.19.11.00 | Mono-, di- and triethylamines;mono-, di-, and tri-(propyl- and butyl-)monoamines; salts of any of the foregoing | 3.7% |
| 2921.19.31.00 | 3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride | Libre (Free) |
| 2921.19.61 | Other | 6.5% |
| 2921.19.61.10 | N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts | |
| 2921.19.61.20 | Bis(2-chloroethyl)ethylamine) | |
| 2921.19.61.30 | Chlormethine (INN) (bis(2-chloroethyl)methylamine) | |
| 2921.19.61.40 | Trichlormethine (INN) (tris(2-chloroethyl)amine) | |
| 2921.19.61.95 | Other |
2921.21 Etilendiamina y sus sales
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.21.00.00 | Ethylenediamine and its salts | 5.8% |
2921.22 Hexametilendiamina y sus sales
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.22 | Hexamethylenediamine and its salts: | |
| 2921.22.05.00 | Hexamethylenediamine adipate (Nylon salt) | 6.5% |
| 2921.22.10.00 | Derived in whole or in part from adipic acid | 6.5% |
| 2921.22.50.00 | Other | 6.5% |
2921.29 Los demás
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.29.00 | Other | 6.5% |
| 2921.29.00.10 | Tetraethylene pentamine | |
| 2921.29.00.20 | Triethylenetetramine | |
| 2921.29.00.30 | Diethylenetriamine | |
| 2921.29.00.55 | Other |
2921.30 Monoaminas y poliaminas, ciclánicas, ciclénicas o cicloterpénicas, y sus derivados; sales de estos productos
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.30 | Cyclanic, cyclenic or cycloterpenic mono- or polyamines, and their derivatives; salts thereof: | |
| 2921.30.05.00 | 1,3-Bis(aminoethyl)cyclohexane | Libre (Free) |
| 2921.30.10.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2921.30.30.00 | Other | 6.5% |
| 2921.30.50.00 | Other | 3.7% |
2921.41 Anilina y sus sales
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.41 | Aniline and its salts: | |
| 2921.41.10.00 | Aniline | 6.5% |
| 2921.41.20.00 | Aniline salts | 6.5% |
2921.42 Derivados de la anilina y sus sales
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.42 | Aniline derivatives and their salts: | |
| 2921.42.10.00 | N,N-Dimethylaniline | 6.5% |
| 2921.42.15.00 | N-Ethylaniline; andN,N-Diethylaniline | 6.5% |
| 2921.42.16.00 | 2,4,5-Trichloroaniline | Libre (Free) |
| 2921.42.18.00 | o-Aminobenzenesulfonic acid (Orthanilic acid); 6-Chlorometanilic acid; 2-Chloro-5-nitroaniline; 4-Chloro-3-nitroaniline; 2,3-Dichloroaniline; 2,4-Dichloroaniline; 2,5-Dichloroaniline; 3,5-Dichloroaniline;N,N-Diethylmetanilic acid;N,N-Diethylmetanilic acid, sodium salt; 2,4-Difluoroaniline;p-Fluoroaniline;N-Methylaniline; andm-Nitroaniline | 5.8% |
| 2921.42.21.00 | Metanilic acid | 6.5% |
| 2921.42.22.00 | Sulfanilic acid | 6.5% |
| 2921.42.23.00 | 3,4-Dichloroaniline | 6.5% |
| 2921.42.36.00 | m-Chloroaniline; 2-Chloro-4-nitroaniline; 2,5-Dichloroaniline-4-sulfonic acid and its monosodium salt; 2,4-Dinitroaniline;o-Nitroaniline-p-sulfonic acid, sodium salt; and 2,3,4-Trifluoroaniline | Libre (Free) |
| 2921.42.55.00 | Fast color bases | 6.5% |
| 2921.42.65.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2921.42.90.00 | Other | 6.5% |
2921.43 Toluidinas y sus derivados; sales de estos productos
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.43 | Toluidines and their derivatives; salts thereof: | |
| 2921.43.04.00 | 3-Chloro-o-toluidine; and 6-Chloro-o-toluidine | Libre (Free) |
| 2921.43.08.00 | 4-Chloro-o-toluidine and hydrochloride; 5-Chloro-o-toluidine; 6-Chloro-2-toluidine-4-sulfonic acid; 4-Chloro-α,α,α-trifluoro-o- toluidine; 2,6-Dichloro-m-toluidine;N,N- Dimethyl-p-toluidine;N-Ethyl-N-benzyl-m-toluidine; andN-Ethyl-o-toluidine | 5.8% |
| 2921.43.15.00 | α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin) | 6.5% |
| 2921.43.19.00 | α,α,α-Trifluoro-o-toluidine; andα,α,α-Trifluoro-6-chloro-m-toluidine | 6.5% |
| 2921.43.22.00 | N-Ethyl-N-(2-methyl-2-propenyl)-2,6- dinitro-4-(trifluoromethyl)benzenamine | 6.5% |
| 2921.43.24.00 | 2-Amino-5-chloro-4-ethyl benzenesulfonic acid; 2-Amino-5-chloro-p-toluenesulfonic acid;p-Nitro-o-toluidine; and 3-(Trifluoromethyl) aniline (m-Aminobenzotrifluoride) | Libre (Free) |
| 2921.43.40.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2921.43.90 | Other | 6.5% |
| 2921.43.90.20 | 2-Chloro-p-toluidine-5-sulfonic acid (CAS No. 88-51-7) | |
| 2921.43.90.40 | p-Toluidine-m-sulfonic acid (CAS No. 88-44-8) | |
| 2921.43.90.90 | Other |
2921.44 Difenilamina y sus derivados; sales de estos productos
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.44 | Diphenylamine and its derivatives; salts thereof: | |
| 2921.44.05.00 | 4,4'-Bis (α,α-dimethylbenzyl) diphenylamine; andN-Nitrosodiphenylamine | Libre (Free) |
| 2921.44.10.00 | Nitrodiphenylamine | 6.5% |
| 2921.44.20.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2921.44.70.00 | Other | 6.5% |
2921.45 1-Naftilamina (α-naftilamina),2-naftilamina (β-naftilamina), y sus derivados; sales de estos productos
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.45 | 1-Naphthylamine (α-Naphthylamine), 2-Naphthylamine (β-Naphthylamine), and their derivatives; salts thereof: | |
| 2921.45.10.00 | 7-Amino-1,3-naphthalenedisulfonic acid and its salts; 5-Amino-2-naphthalenesulfonic acid and its salts; 8-Amino-1-naphthalenesulfonic acid and its salts; andN-Phenyl-2-naphthylamine | 6.5% |
| 2921.45.20.00 | 3-Amino-2,7-naphthalenedisulfonic acid; 4-Amino-1-naphthalenesulfonic acid, sodium salt; 5-Amino-1-naphthalenesulfonic acid (Laurent's acid); 8-Amino-2-naphthalenesulfonic acid and its salts; 7-Amino-1,3,6-naphthalenetrisulfonic acid; 8-Anilino-1-naphthalenesulfonic acid (Phenyl Peri acid) and its salts; andN-Ethyl-1-naphthylamine | 5.8% |
| 2921.45.25.00 | Mixtures of 5- and 8-amino-2-naphthalene- sulfonic acid; 2-Naphthylamine-6-sulfonic acid; ando-Naphthionic acid (1-amino- 2-naphthalene- sulfonic acid) | Libre (Free) |
| 2921.45.60.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2921.45.90 | Other | 6.5% |
| 2921.45.90.10 | 2-Amino-1-naphthalenesulfonic acid (Tobias acid) | |
| 2921.45.90.90 | Other |
2921.46 Anfetamina (DCI), benzfetamina (DCI), dexanfetamina (DCI), etilanfetamina (DCI), fencanfamina (DCI), fentermina (DCI), lefetamina (DCI), levanfetamina (DCI) y mefenorex (DCI); sales de estos productos
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.46.00.00 | Amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof | Libre (Free) |
2921.49 Los demás
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.49 | Other: | |
| 2921.49.10.00 | 4-Amino-2-stilbenesulfonic acid and its salts;p-Ethylaniline; 2,4,6-Trimethylaniline (Mesidine); 2,3-Xylidine; 2,4-Xylidine; 2,5-Xylidine; and 3,4-Xylidine | 5.8% |
| 2921.49.15.00 | m-Nitro-p-toluidine | Libre (Free) |
| 2921.49.32.00 | Fast color bases | 6.5% |
| 2921.49.38.00 | Antidepressants, tranquilizers and other psychotherapeutic agents | 6.5% |
| 2921.49.43.00 | Other | 6.5% |
| 2921.49.45.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2921.49.50.00 | Other | 6.5% |
2921.51 o-, m- y p-Fenilendiamina, diaminotoluenos, y sus derivados; sales de estos productos
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.51 | o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof: | |
| 2921.51.10.00 | 4-Amino-2-(N,N-diethylamino) toluene hydrochloride;m-Phenylenediamine;o-Phenylenediamine; Toluene-2,4-diamine; Toluene-2,5-diamine; and Toluene-2,5-diamine sulfate | 6.5% |
| 2921.51.20.00 | Photographic chemicals | 6.5% |
| 2921.51.30.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2921.51.50.00 | Other | 6.5% |
2921.59 Los demás
| Código (HTS) | Descripción oficial | Tarifa general |
|---|---|---|
| 2921.59 | Other: | |
| 2921.59.04.00 | 1,8-Diaminonaphthalene (1,8-Naphthalenediamine) | Libre (Free) |
| 2921.59.08.00 | 5-Amino-2-(p-aminoanilino) benzenesulfonic acid; 4,4'-Diamino-3-biphenylsulfonic acid (3-Benzidinesulfonic acid); 3,3'-Dimethylbenzidine (o-Tolidine); 3,3'-Dimethylbenzidine hydrochloride; Ethyl-(2-dimethylaminoethyl) aniline;N-Ethyl-N,N'-dimethyl-N'-phenylethylene- diamine; and 4,4'-Methylenebis(2-chloroaniline) | 5.8% |
| 2921.59.17.00 | 4,4'-Benzidine-2,2'-disulfonic acid; 1,4-Diaminobenzene-2-sulfonic acid; 4,4'-Methylene bis ((3-chloro-2,6-diethylaniline); 4,4'-Methylene bis(2,6-diethylaniline); 4,4'-Methylene bis (2,6-diisopropylaniline);m-Xylene diamine; and 3,3'-Diaminobenzidine (tetraaminobiphenyl) | Libre (Free) |
| 2921.59.20.00 | 4,4'-Diamino-2,2'-stilbenedisulfonic acid | 6.5% |
| 2921.59.30.00 | 4,4'-Methylenedianiline | 6.5% |
| 2921.59.40.00 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2921.59.80 | Other | 6.5% |
| 2921.59.80.10 | 3,3'-Dichlorobenzidine dihydrochloride | |
| 2921.59.80.90 | Other |
Cómo leer estas tarifas
Tarifa general. Es la que paga la mercadería de casi todos los países al entrar a Estados Unidos (los que tienen relaciones comerciales normales). «Libre (Free)» significa que no paga arancel. Puede ser un porcentaje del valor, un monto por unidad o una combinación.
Tarifas preferenciales. Si tu país tiene un tratado de libre comercio u otro programa con EE. UU., la mercadería que cumple las reglas de origen puede pagar menos. Esa columna aparece al abrir cada código.
Recargos adicionales. Sobre la tarifa general pueden aplicarse aranceles adicionales por país de origen o por producto (capítulo 99 del arancel). Al abrir un código verás los que estén vigentes y podrás recibir un aviso por correo si la tarifa cambia.
Información de referencia, no es asesoramiento legal ni aduanero. El texto oficial es el del arancel de EE. UU., en inglés; la clasificación y la tarifa aplicable las determina la aduana (CBP). Confírmalas con un agente aduanal con licencia antes de embarcar. Nombres en español: Sistema Armonizado 2022 en español, según la Nomenclatura Combinada 2026 de la Unión Europea (Eurostat). Tarifas: U.S. International Trade Commission.
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