HTS 2921
Amine-function compounds
As of Revision 22 (2026), effective Oct 30, 2026Source: USITC HTS ↗
Chapters › 2921
Chapter 99 measures listing products under 2921
Potash that is a product of Mexico, as provided for in U.S. note 2(c) to this subchapter
Mexico22 listed productsExcept for products described in headings 9903.05.02–9903.05.09, articles the product of Brazil, as provided for in subdivision (a) of U.S. note 50 to this subchapter
Brazil22 listed productsArticles the product of Brazil, as provided for in subdivision (a)(ii) of U.S. note 50 to this subchapter
Brazil22 listed productsArticles the product of Brazil, as provided for in subdivision (a)(iii) of U.S. note 50 to this subchapter
Brazil22 listed productsArticles of civil aircraft (all aircraft other than military aircraft); their engines, parts and components; their other parts, components and subassemblies; and ground flight simulators and their parts and components of Brazil, as provided for in subdivision (a)(iv) of U.S. note 50 to this subchapter
Brazil22 listed productsArticles the product of Brazil that are articles for use in pharmaceutical applications, as provided for in subdivision (a)(v) of U.S. note 50 to this subchapter
Brazil22 listed productsArticles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo…
Brazil22 listed productsArticles for use in pharmaceutical applications, as provided for in subdivision (e) of U.S. note 52 to this subchapter
22 listed productsExcept as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided…
China53 listed productsExcept as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the…
China7 listed productsArticles the product of China, as provided for in U.S. note 20(t) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(u) [Compiler's note: provision suspended.]
China1 listed productArticles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter
Russia2 listed products
Lines under 2921
| HTS | Description | General | Column 2 |
|---|---|---|---|
| 2921.11.00.00 | Methylamine, di- or trimethylamine and their salts | 3.7% | 25% |
| 2921.12.01.00 | 2-(N,N-Dimethylamino)ethyl chloride hydrochloride | Free | 30.5% |
| 2921.13.00.00 | 2-(N,N-Diethylamino)ethyl chloride hydrochloride | Free | 30.5% |
| 2921.14.00.00 | 2-(N,N,-Diisopropylamino)ethyl chloride hydrochloride | 6.5% | 30.5% |
| 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% | 25% |
| 2921.19.31.00 | 3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride | Free | 30.5% |
| 2921.19.61 | Other | 6.5% | 30.5% |
| 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 | ||
| 2921.21.00.00 | Ethylenediamine and its salts | 5.8% | 39% |
| 2921.22 | Hexamethylenediamine and its salts: | ||
| 2921.22.05.00 | Hexamethylenediamine adipate (Nylon salt) | 6.5% | 15.4¢/kg + 46% |
| 2921.22.10.00 | Derived in whole or in part from adipic acid | 6.5% | 15.4¢/kg + 66.5% |
| 2921.22.50.00 | Other | 6.5% | 30.5% |
| 2921.29.00 | Other | 6.5% | 30.5% |
| 2921.29.00.10 | Tetraethylene pentamine | ||
| 2921.29.00.20 | Triethylenetetramine | ||
| 2921.29.00.30 | Diethylenetriamine | ||
| 2921.29.00.55 | Other | ||
| 2921.30 | Cyclanic, cyclenic or cycloterpenic mono- or polyamines, and their derivatives; salts thereof: | ||
| 2921.30.05.00 | 1,3-Bis(aminoethyl)cyclohexane | Free | 15.4¢/kg + 53.5% |
| 2921.30.10.00 | Products described in additional U.S. note 3 to section VI | 6.5% | 15.4¢/kg + 53.5% |
| 2921.30.30.00 | Other | 6.5% | 15.4¢/kg + 53.5% |
| 2921.30.50.00 | Other | 3.7% | 25% |
| 2921.41 | Aniline and its salts: | ||
| 2921.41.10.00 | Aniline | 6.5% | 15.4¢/kg + 43.5% |
| 2921.41.20.00 | Aniline salts | 6.5% | 15.4¢/kg + 60% |
| 2921.42 | Aniline derivatives and their salts: | ||
| 2921.42.10.00 | N,N-Dimethylaniline | 6.5% | 15.4¢/kg + 40% |
| 2921.42.15.00 | N-Ethylaniline; andN,N-Diethylaniline | 6.5% | 15.4¢/kg + 60% |
| 2921.42.16.00 | 2,4,5-Trichloroaniline | Free | 15.4¢/kg + 39.5% |
| 2921.42.18.00 | o-Aminobenzenesulfonic acid (Orthanilic acid); 6-Chlorometanilic acid; 2-Chloro-5-nitroaniline; 4-Chloro-3-nitroaniline… | 5.8% | 15.4¢/kg + 39.5% |
| 2921.42.21.00 | Metanilic acid | 6.5% | 15.4¢/kg + 60% |
| 2921.42.22.00 | Sulfanilic acid | 6.5% | 15.4¢/kg + 60% |
| 2921.42.23.00 | 3,4-Dichloroaniline | 6.5% | 15.4¢/kg + 60% |
| 2921.42.36.00 | m-Chloroaniline; 2-Chloro-4-nitroaniline; 2,5-Dichloroaniline-4-sulfonic acid and its monosodium salt… | Free | 15.4¢/kg + 60% |
| 2921.42.55.00 | Fast color bases | 6.5% | 15.4¢/kg + 53% |
| 2921.42.65.00 | Products described in additional U.S. note 3 to section VI | 6.5% | 15.4¢/kg + 60% |
| 2921.42.90.00 | Other | 6.5% | 15.4¢/kg + 60% |
| 2921.43 | Toluidines and their derivatives; salts thereof: | ||
| 2921.43.04.00 | 3-Chloro-o-toluidine; and 6-Chloro-o-toluidine | Free | 15.4¢/kg + 39.5% |
| 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… | 5.8% | 15.4¢/kg + 39.5% |
| 2921.43.15.00 | α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin) | 6.5% | 15.4¢/kg + 48.5% |
| 2921.43.19.00 | α,α,α-Trifluoro-o-toluidine; andα,α,α-Trifluoro-6-chloro-m-toluidine | 6.5% | 15.4¢/kg + 60% |
| 2921.43.22.00 | N-Ethyl-N-(2-methyl-2-propenyl)-2,6- dinitro-4-(trifluoromethyl)benzenamine | 6.5% | 15.4¢/kg + 60% |
| 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… | Free | 15.4¢/kg + 60% |
| 2921.43.40.00 | Products described in additional U.S. note 3 to section VI | 6.5% | 15.4¢/kg + 60% |
| 2921.43.90 | Other | 6.5% | 15.4¢/kg + 60% |
| 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 | Diphenylamine and its derivatives; salts thereof: | ||
| 2921.44.05.00 | 4,4'-Bis (α,α-dimethylbenzyl) diphenylamine; andN-Nitrosodiphenylamine | Free | 15.4¢/kg + 60% |
| 2921.44.10.00 | Nitrodiphenylamine | 6.5% | 15.4¢/kg + 40% |
| 2921.44.20.00 | Products described in additional U.S. note 3 to section VI | 6.5% | 15.4¢/kg + 60% |
| 2921.44.70.00 | Other | 6.5% | 15.4¢/kg + 60% |
| 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… | 6.5% | 15.4¢/kg + 48.5% |
| 2921.45.20.00 | 3-Amino-2,7-naphthalenedisulfonic acid; 4-Amino-1-naphthalenesulfonic acid, sodium salt; 5-Amino-1-naphthalenesulfonic acid (Laurent's… | 5.8% | 15.4¢/kg + 39.5% |
| 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-… | Free | 15.4¢/kg + 60% |
| 2921.45.60.00 | Products described in additional U.S. note 3 to section VI | 6.5% | 15.4¢/kg + 60% |
| 2921.45.90 | Other | 6.5% | 15.4¢/kg + 60% |
| 2921.45.90.10 | 2-Amino-1-naphthalenesulfonic acid (Tobias acid) | ||
| 2921.45.90.90 | Other | ||
| 2921.46.00.00 | Amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN)… | Free | 15.4¢/kg + 149.5% |
| 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… | 5.8% | 15.4¢/kg + 48.5% |
| 2921.49.15.00 | m-Nitro-p-toluidine | Free | 15.4¢/kg + 53% |
| 2921.49.32.00 | Fast color bases | 6.5% | 15.4¢/kg + 53% |
| 2921.49.38.00 | Antidepressants, tranquilizers and other psychotherapeutic agents | 6.5% | 15.4¢/kg + 149.5% |
| 2921.49.43.00 | Other | 6.5% | 15.4¢/kg + 71.5% |
| 2921.49.45.00 | Products described in additional U.S. note 3 to section VI | 6.5% | 15.4¢/kg + 60% |
| 2921.49.50.00 | Other | 6.5% | 15.4¢/kg + 60% |
| 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… | 6.5% | 15.4¢/kg + 48.5% |
| 2921.51.20.00 | Photographic chemicals | 6.5% | 15.4¢/kg + 50% |
| 2921.51.30.00 | Products described in additional U.S. note 3 to section VI | 6.5% | 15.4¢/kg + 60% |
| 2921.51.50.00 | Other | 6.5% | 15.4¢/kg + 60% |
| 2921.59 | Other: | ||
| 2921.59.04.00 | 1,8-Diaminonaphthalene (1,8-Naphthalenediamine) | Free | 15.4¢/kg + 39.5% |
| 2921.59.08.00 | 5-Amino-2-(p-aminoanilino) benzenesulfonic acid; 4,4'-Diamino-3-biphenylsulfonic acid (3-Benzidinesulfonic acid); 3,3'-Dimethylbenzidine… | 5.8% | 15.4¢/kg + 39.5% |
| 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… | Free | 15.4¢/kg + 60% |
| 2921.59.20.00 | 4,4'-Diamino-2,2'-stilbenedisulfonic acid | 6.5% | 15.4¢/kg + 80% |
| 2921.59.30.00 | 4,4'-Methylenedianiline | 6.5% | 15.4¢/kg + 40% |
| 2921.59.40.00 | Products described in additional U.S. note 3 to section VI | 6.5% | 15.4¢/kg + 60% |
| 2921.59.80 | Other | 6.5% | 15.4¢/kg + 60% |
| 2921.59.80.10 | 3,3'-Dichlorobenzidine dihydrochloride | ||
| 2921.59.80.90 | Other |