2921 - Amine-function compounds

Sub-classifications

Commodity Code

Description

Acyclic monoamines and their derivatives; salts thereof:
- 2921 1100 00
  
  Methylamine, di- or trimethylamine and their salts
- 2921 1201 00
  
  2-(N,N-Dimethylamino)ethyl chloride hydrochloride
- 2921 1300 00
  
  2-(N,N-Diethylamino)ethyl chloride hydrochloride
- 2921 1400 00
  
  2-(N,N,-Diisopropylamino)ethyl chloride hydrochloride
- 2921 19
  
  Other:
  - 2921 1911 00
    
    Mono-, di- and triethylamines;mono-, di-, and tri-(propyl- and butyl-)monoamines; salts of any of the foregoing
  - 2921 1931 00
    
    3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride
  - 2921 1961
    
    Other
    
    2921 1961 10
    
    N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts
    
    2921 1961 20
    
    Bis(2-chloroethyl)ethylamine)
    
    2921 1961 30
    
    Chlormethine (INN) (bis(2-chloroethyl)methylamine)
    
    2921 1961 40
    
    Trichlormethine (INN) (tris(2-chloroethyl)amine)
    
    2921 1961 95
    
    Other
Acyclic polyamines and their derivatives; salts thereof:
- 2921 2100 00
  
  Ethylenediamine and its salts
- 2921 22
  
  Hexamethylenediamine and its salts:
  - 2921 2205 00
    
    Hexamethylenediamine adipate (Nylon salt)
  - Other:
    
    2921 2210 00
    
    Derived in whole or in part from adipic acid
    
    2921 2250 00
    
    Other
- 2921 2900
  
  Other
  - 2921 2900 10
    
    Tetraethylene pentamine
  - 2921 2900 20
    
    Triethylenetetramine
  - 2921 2900 30
    
    Diethylenetriamine
  - 2921 2900 55
    
    Other
2921 30

Cyclanic, cyclenic or cycloterpenic mono- or polyamines, and their derivatives; salts thereof:
- Derived in whole or in part from any aromatic compound:
  - 2921 3005 00
    
    1,3-Bis(aminoethyl)cyclohexane
  - Other:
    
    2921 3010 00
    
    Products described in additional U.S. note 3 to section VI
    
    2921 3030 00
    
    Other
- 2921 3050 00
  
  Other
Aromatic monoamines and their derivatives; salts thereof:
- 2921 41
  
  Aniline and its salts:
  - 2921 4110 00
    
    Aniline
  - 2921 4120 00
    
    Aniline salts
- 2921 42
  
  Aniline derivatives and their salts:
  - 2921 4210 00
    
    N,N-Dimethylaniline
  - 2921 4215 00
    
    N-Ethylaniline; andN,N-Diethylaniline
  - 2921 4216 00
    
    2,4,5-Trichloroaniline
  - 2921 4218 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
  - 2921 4221 00
    
    Metanilic acid
  - 2921 4222 00
    
    Sulfanilic acid
  - 2921 4223 00
    
    3,4-Dichloroaniline
  - 2921 4236 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
  - Other:
    
    2921 4255 00
    
    Fast color bases
    
    Other:
    
    2921 4265 00
    
    Products described in additional U.S. note 3 to section VI
    
    2921 4290 00
    
    Other
- 2921 43
  
  Toluidines and their derivatives; salts thereof:
  - 2921 4304 00
    
    3-Chloro-o-toluidine; and 6-Chloro-o-toluidine
  - 2921 4308 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
  - 2921 4315 00
    
    α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin)
  - 2921 4319 00
    
    α,α,α-Trifluoro-o-toluidine; andα,α,α-Trifluoro-6-chloro-m-toluidine
  - 2921 4322 00
    
    N-Ethyl-N-(2-methyl-2-propenyl)-2,6- dinitro-4-(trifluoromethyl)benzenamine
  - 2921 4324 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)
  - Other:
    
    2921 4340 00
    
    Products described in additional U.S. note 3 to section VI
    
    2921 4390
    
    Other
    
    2921 4390 20
    
    2-Chloro-p-toluidine-5-sulfonic acid (CAS No. 88-51-7)
    
    2921 4390 40
    
    p-Toluidine-m-sulfonic acid (CAS No. 88-44-8)
    
    2921 4390 90
    
    Other
- 2921 44
  
  Diphenylamine and its derivatives; salts thereof:
  - 2921 4405 00
    
    4,4'-Bis (α,α-dimethylbenzyl) diphenylamine; andN-Nitrosodiphenylamine
  - 2921 4410 00
    
    Nitrodiphenylamine
  - Other:
    
    2921 4420 00
    
    Products described in additional U.S. note 3 to section VI
    
    2921 4470 00
    
    Other
- 2921 45
  
  1-Naphthylamine (α-Naphthylamine), 2-Naphthylamine (β-Naphthylamine), and their derivatives; salts thereof:
- 2921 4600 00
  
  Amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof
- 2921 49
  
  Other:
  - 2921 4910 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
  - 2921 4915 00
    
    m-Nitro-p-toluidine
  - Other:
    
    2921 4932 00
    
    Fast color bases
    
    Drugs:
    
    2921 4938 00
    
    Antidepressants, tranquilizers and other psychotherapeutic agents
    
    2921 4943 00
    
    Other
    
    Other:
    
    2921 4945 00
    
    Products described in additional U.S. note 3 to section VI
    
    2921 4950 00
    
    Other
Aromatic polyamines and their derivatives; salts thereof:
- 2921 51
  
  o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof:
  - 2921 5110 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
  - Other:
    
    2921 5120 00
    
    Photographic chemicals
    
    Other:
    
    2921 5130 00
    
    Products described in additional U.S. note 3 to section VI
    
    2921 5150 00
    
    Other
- 2921 59
  
  Other:

Overview

Category 2921 encompasses a broad range of organic compounds characterized by the presence of one or more amine functional groups. These compounds are vital intermediates and final products across various chemical industries, including pharmaceuticals, agrochemicals, dyes, and polymers. The defining feature is the nitrogen atom bonded to at least one alkyl or aryl group, forming primary (RNH2), secondary (R2NH), or tertiary (R3N) amines, along with their derivatives such as quaternary ammonium salts.

This category is situated within Chapter 29, which deals exclusively with organic chemicals. Unlike sibling categories at the Chapter or Section level that might cover broader classes of organic compounds or different types of chemicals entirely (e.g., alcohols, acids, or inorganic substances), HTS 2921 specifically focuses on the amine functional group as the primary classifying characteristic.

The subdivisions within HTS 2921 further refine classification based on the structure of the carbon skeleton to which the amine group is attached. This includes distinctions between acyclic amines (those with non-cyclic carbon chains), cyclanic, cyclenic, or cycloterpenic amines (those with cyclic carbon structures), and aromatic amines (those where the amine group is directly attached to an aromatic ring). These subcategories allow for precise identification of specific amine types, crucial for determining applicable duties, import regulations, and trade statistics.

Go up to Chapter 29: Organic chemicals

2921 - Amine-function compounds

Sub-classifications

Overview

Stay Updated