HTS US: 2921.XX.XXXX
Description
This heading includes a broad range of organic compounds characterized by the presence of amine functional groups. These compounds encompass simple amines like methylamine and ethylamine, complex diamines such as ethylenediamine and hexamethylenediamine, aromatic amines including anilines and toluidines, as well as various derivatives and salts. The heading covers both cyclic and acyclic amines, their hydrochloride salts, and other protonated forms used in diverse industrial, pharmaceutical, and chemical applications.
Code Hierarchy
- Section VI: Chemicals and Allied Industries (Chapters 28-38)
- Chapter 29: Organic Chemicals
- Heading 2921: Amine-function compounds
- US HTS Code (10-digit):
2921.XX.XXXX– The specific subheadings and final digits define the exact chemical substance or derivative.
Detailed Breakdown of Subheadings
The 4-digit HS heading 2921 is subdivided into multiple 6-digit and 10-digit subheadings that specify individual amines, their derivatives, and salts. Below is a comprehensive table illustrating the US HTS subcodes and their descriptions:
| HS/HTS Code | Description | Examples & Notes |
|---|---|---|
| 2921.11.00.00 | Methylamine, di- or trimethylamine and their salts | Common simple amines used in synthesis and industrial processes. |
| 2921.12.01.00 | 2-(N,N-Dimethylamino)ethyl chloride hydrochloride | Used in organic synthesis as an intermediate. |
| 2921.13.00.00 | 2-(N,N-Diethylamino)ethyl chloride hydrochloride | Similar usage as above with ethyl substituents. |
| 2921.14.00.00 | 2-(N,N,-Diisopropylamino)ethyl chloride hydrochloride | Derivative with isopropyl groups. |
| 2921.19.11.00 | Mono-, di- and triethylamines; mono-, di-, and tri-(propyl- and butyl-)monoamines; salts of any of the foregoing | Various simple alkyl amines and their salts. |
| 2921.19.31.00 | 3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride | Specialized amine compounds. |
| 2921.19.61.10 | N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts | Chloroethylamine derivatives important in chemical manufacturing. |
| 2921.19.61.20 | Bis(2-chloroethyl)ethylamine | Intermediate in chemical synthesis. |
| 2921.19.61.30 | Chlormethine (INN) (bis(2-chloroethyl)methylamine) | A nitrogen mustard used historically in chemotherapy. |
| 2921.19.61.40 | Trichlormethine (INN) (tris(2-chloroethyl)amine) | Another nitrogen mustard compound. |
| 2921.21.00.00 | Ethylenediamine and its salts | Widely used diamine in chemical synthesis and industry. |
| 2921.22.05.00 | Hexamethylenediamine adipate (Nylon salt) | Key intermediate in nylon production. |
| 2921.22.10.00 | Derived in whole or in part from adipic acid | Related nylon salt derivatives. |
| 2921.29.00.10 | Tetraethylene pentamine | Polyamine used in epoxy curing agents. |
| 2921.29.00.20 | Triethylenetetramine | Used in chelating agents and pharmaceuticals. |
| 2921.29.00.30 | Diethylenetriamine | Industrial chemical intermediate. |
| 2921.30.05.00 | 1,3-Bis(aminoethyl)cyclohexane | Cyclanic diamine derivative. |
| 2921.41.10.00 | Aniline | Fundamental aromatic amine used in dyes and chemicals. |
| 2921.41.20.00 | Aniline salts | Commonly used as intermediates in synthesis. |
| 2921.42.10.00 | N,N-Dimethylaniline | A substituted aniline derivative. |
| 2921.42.15.00 | N-Ethylaniline; and N,N-Diethylaniline | Ethyl-substituted anilines. |
| 2921.42.18.00 | o-Aminobenzenesulfonic acid (Orthanilic acid); and related compounds | Various sulfonated aromatic amines. |
| 2921.42.21.00 | Metanilic acid | Used in dye production. |
| 2921.42.22.00 | Sulfanilic acid | Key intermediate in azo dyes. |
| 2921.42.23.00 | 3,4-Dichloroaniline | Chlorinated aniline derivative. |
| 2921.42.55.00 | Fast color bases | Aromatic amines used in dye chemistry. |
| 2921.43.04.00 | 3-Chloro-o-toluidine; and 6-Chloro-o-toluidine | Halogenated toluidine derivatives. |
| 2921.43.08.00 | 4-Chloro-o-toluidine and hydrochloride; and related toluidines | Important aromatic amines in dye manufacture. |
| 2921.43.15.00 | α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (Trifluralin) | Herbicide active ingredient. |
| 2921.44.05.00 | 4,4′-Bis (α,α-dimethylbenzyl) diphenylamine; and N-Nitrosodiphenylamine | Diphenylamine derivatives used as antioxidants. |
| 2921.44.10.00 | Nitrodiphenylamine | Stabilizer for explosives and propellants. |
| 2921.45.10.00 | 7-Amino-1,3-naphthalenedisulfonic acid and its salts; and related naphthylamines | Used in dye and chemical industries. |
| 2921.46.00.00 | Amfetamine (INN) and related compounds; salts thereof | Pharmaceutical amine compounds. |
| 2921.49.10.00 | 4-Amino-2-stilbenesulfonic acid and its salts; and various substituted anilines | Includes colorants and intermediates. |
| 2921.49.38.00 | Antidepressants, tranquilizers and other psychotherapeutic agents | Pharmaceutical amine derivatives. |
| 2921.51.10.00 | o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof | Used in dyes, polymers, and photographic chemicals. |
| 2921.59.04.00 | 1,8-Diaminonaphthalene (1,8-Naphthalenediamine) | Specialized diamine compound. |
| 2921.59.17.00 | 4,4′-Benzidine-2,2′-disulfonic acid and related compounds | Dye intermediates and industrial chemicals. |
| 2921.59.80.10 | 3,3′-Dichlorobenzidine dihydrochloride | Used in dye manufacturing. |
What is NOT Classified Here?
To avoid misclassification, it is important to note that:
- Non-amine organic compounds and those lacking amine functionality are excluded and classified under other headings.
- Prepared pharmaceutical products containing amines are generally classified under pharmaceutical chapters, not here.
- Polymers and plastics derived from amine monomers are classified elsewhere.
Notes
- Chemical Purity and Form: Substances may be classified based on their chemical form, including free amines, hydrochloride salts, or other protonated forms.
- Regulatory Compliance: Import regulations require adherence to chemical safety and environmental standards.
- Duty Rates: Vary by specific compound and usage; consult current USHTS for precise rates.
Declaration Example
Product: A shipment of ethylenediamine adipate used in nylon production.US HTS Code:
2921.22.05.00(Hexamethylenediamine adipate – Nylon salt)Unit of Quantity: Kilogram (kg)
General Duty Rate: Check current USHTS (Varies depending on use and form)
Additional Requirements: Compliance with chemical safety regulations and possible import licensing.
Related HTS Codes
- HTS 2920: Oxygen-function compounds
- HTS 2933: Heterocyclic compounds with nitrogen atoms
- HTS 3004: Medicaments consisting of mixed or unmixed products containing alkaloids or derivatives
- HTS 3812: Prepared rubber accelerators; compound plasticizers for rubber or plastics
