Heading 2921
HTS code 2921 — Amine-function compounds
- Chapter
- 29 — Organic chemicals
- Tariff lines
- 76
- General duty
- General duty rates from 3.7% to 6.5%, with 14 duty-free lines
Tariff lines under heading 2921
Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.
| HTS code | Description | General rate | Unit |
|---|---|---|---|
| 2921.11.0000 | Methylamine, di- or trimethylamine and their salts (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof) | 3.7% | kg |
| 2921.12.0100 | 2-(N,N-Dimethylamino)ethyl chloride hydrochloride (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof) | Free | kg |
| 2921.13.0000 | 2-(N,N-Diethylamino)ethyl chloride hydrochloride (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof) | Free | kg |
| 2921.14.0000 | 2-(N,N,-Diisopropylamino)ethyl chloride hydrochloride (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof) | 6.5% | kg |
| 2921.19.1100 | Mono-, di- and triethylamines;mono-, di-, and tri-(propyl- and butyl-)monoamines; salts of any of the foregoing (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof > Other) | 3.7% | kg |
| 2921.19.3100 | 3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof > Other) | Free | kg |
| 2921.19.6110 | N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.19.6120 | Bis(2-chloroethyl)ethylamine) (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.19.6130 | Chlormethine (INN) (bis(2-chloroethyl)methylamine) (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.19.6140 | Trichlormethine (INN) (tris(2-chloroethyl)amine) (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.19.6195 | Other (Amine-function compounds > Acyclic monoamines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.21.0000 | Ethylenediamine and its salts (Amine-function compounds > Acyclic polyamines and their derivatives; salts thereof) | 5.8% | kg |
| 2921.22.0500 | Hexamethylenediamine adipate (Nylon salt) (Amine-function compounds > Acyclic polyamines and their derivatives; salts thereof > Hexamethylenediamine and its salts) | 6.5% | kg |
| 2921.22.1000 | Derived in whole or in part from adipic acid (Amine-function compounds > Acyclic polyamines and their derivatives; salts thereof > Hexamethylenediamine and its salts > Other) | 6.5% | kg |
| 2921.22.5000 | Other (Amine-function compounds > Acyclic polyamines and their derivatives; salts thereof > Hexamethylenediamine and its salts > Other) | 6.5% | kg |
| 2921.29.0010 | Tetraethylene pentamine (Amine-function compounds > Acyclic polyamines and their derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.29.0020 | Triethylenetetramine (Amine-function compounds > Acyclic polyamines and their derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.29.0030 | Diethylenetriamine (Amine-function compounds > Acyclic polyamines and their derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.29.0055 | Other (Amine-function compounds > Acyclic polyamines and their derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.30.0500 | 1,3-Bis(aminoethyl)cyclohexane (Amine-function compounds > Cyclanic, cyclenic or cycloterpenic mono- or polyamines, and their derivatives; salts thereof > Derived in whole or in part from any aromatic compound) | Free | kg |
| 2921.30.1000 | Products described in additional U.S. note 3 to section VI (Amine-function compounds > Cyclanic, cyclenic or cycloterpenic mono- or polyamines, and their derivatives; salts thereof > Derived in whole or in part from any aromatic compound > Other) | 6.5% | kg |
| 2921.30.3000 | Other (Amine-function compounds > Cyclanic, cyclenic or cycloterpenic mono- or polyamines, and their derivatives; salts thereof > Derived in whole or in part from any aromatic compound > Other) | 6.5% | kg |
| 2921.30.5000 | Other (Amine-function compounds > Cyclanic, cyclenic or cycloterpenic mono- or polyamines, and their derivatives; salts thereof) | 3.7% | kg |
| 2921.41.1000 | Aniline (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline and its salts) | 6.5% | kg |
| 2921.41.2000 | Aniline salts (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline and its salts) | 6.5% | kg |
| 2921.42.1000 | N,N-Dimethylaniline (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts) | 6.5% | kg |
| 2921.42.1500 | N-Ethylaniline; andN,N-Diethylaniline (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts) | 6.5% | kg |
| 2921.42.1600 | 2,4,5-Trichloroaniline (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts) | Free | kg |
| 2921.42.1800 | 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 (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts) | 5.8% | kg |
| 2921.42.2100 | Metanilic acid (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts) | 6.5% | kg |
| 2921.42.2200 | Sulfanilic acid (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts) | 6.5% | kg |
| 2921.42.2300 | 3,4-Dichloroaniline (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts) | 6.5% | kg |
| 2921.42.3600 | 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 (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts) | Free | kg |
| 2921.42.5500 | Fast color bases (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts > Other) | 6.5% | kg |
| 2921.42.6500 | Products described in additional U.S. note 3 to section VI (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts > Other > Other) | 6.5% | kg |
| 2921.42.9000 | Other (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Aniline derivatives and their salts > Other > Other) | 6.5% | kg |
| 2921.43.0400 | 3-Chloro-o-toluidine; and 6-Chloro-o-toluidine (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof) | Free | kg |
| 2921.43.0800 | 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 (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof) | 5.8% | kg |
| 2921.43.1500 | α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin) (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof) | 6.5% | kg |
| 2921.43.1900 | α,α,α-Trifluoro-o-toluidine; andα,α,α-Trifluoro-6-chloro-m-toluidine (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof) | 6.5% | kg |
| 2921.43.2200 | N-Ethyl-N-(2-methyl-2-propenyl)-2,6- dinitro-4-(trifluoromethyl)benzenamine (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof) | 6.5% | kg |
| 2921.43.2400 | 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) (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof) | Free | kg |
| 2921.43.4000 | Products described in additional U.S. note 3 to section VI (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.43.9020 | 2-Chloro-p-toluidine-5-sulfonic acid (CAS No. 88-51-7) (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.43.9040 | p-Toluidine-m-sulfonic acid (CAS No. 88-44-8) (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.43.9090 | Other (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Toluidines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.44.0500 | 4,4'-Bis (α,α-dimethylbenzyl) diphenylamine; andN-Nitrosodiphenylamine (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Diphenylamine and its derivatives; salts thereof) | Free | kg |
| 2921.44.1000 | Nitrodiphenylamine (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Diphenylamine and its derivatives; salts thereof) | 6.5% | kg |
| 2921.44.2000 | Products described in additional U.S. note 3 to section VI (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Diphenylamine and its derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.44.7000 | Other (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Diphenylamine and its derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.45.1000 | 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 (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > 1-Naphthylamine (α-Naphthylamine), 2-Naphthylamine (β-Naphthylamine), and their derivatives; salts thereof) | 6.5% | kg |
| 2921.45.2000 | 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 (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > 1-Naphthylamine (α-Naphthylamine), 2-Naphthylamine (β-Naphthylamine), and their derivatives; salts thereof) | 5.8% | kg |
| 2921.45.2500 | Mixtures of 5- and 8-amino-2-naphthalene- sulfonic acid; 2-Naphthylamine-6-sulfonic acid; ando-Naphthionic acid (1-amino- 2-naphthalene- sulfonic acid) (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > 1-Naphthylamine (α-Naphthylamine), 2-Naphthylamine (β-Naphthylamine), and their derivatives; salts thereof) | Free | kg |
| 2921.45.6000 | Products described in additional U.S. note 3 to section VI (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > 1-Naphthylamine (α-Naphthylamine), 2-Naphthylamine (β-Naphthylamine), and their derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.45.9010 | 2-Amino-1-naphthalenesulfonic acid (Tobias acid) (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > 1-Naphthylamine (α-Naphthylamine), 2-Naphthylamine (β-Naphthylamine), and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.45.9090 | Other (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > 1-Naphthylamine (α-Naphthylamine), 2-Naphthylamine (β-Naphthylamine), and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.46.0000 | Amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof) | Free | kg |
| 2921.49.1000 | 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 (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Other) | 5.8% | kg |
| 2921.49.1500 | m-Nitro-p-toluidine (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Other) | Free | kg |
| 2921.49.3200 | Fast color bases (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.49.3800 | Antidepressants, tranquilizers and other psychotherapeutic agents (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Other > Other > Drugs) | 6.5% | kg |
| 2921.49.4300 | Other (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Other > Other > Drugs) | 6.5% | kg |
| 2921.49.4500 | Products described in additional U.S. note 3 to section VI (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Other > Other > Other) | 6.5% | kg |
| 2921.49.5000 | Other (Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof > Other > Other > Other) | 6.5% | kg |
| 2921.51.1000 | 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 (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof) | 6.5% | kg |
| 2921.51.2000 | Photographic chemicals (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.51.3000 | Products described in additional U.S. note 3 to section VI (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.51.5000 | Other (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.59.0400 | 1,8-Diaminonaphthalene (1,8-Naphthalenediamine) (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > Other) | Free | kg |
| 2921.59.0800 | 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) (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > Other) | 5.8% | kg |
| 2921.59.1700 | 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) (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > Other) | Free | kg |
| 2921.59.2000 | 4,4'-Diamino-2,2'-stilbenedisulfonic acid (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.59.3000 | 4,4'-Methylenedianiline (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > Other) | 6.5% | kg |
| 2921.59.4000 | Products described in additional U.S. note 3 to section VI (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > Other > Other) | 6.5% | kg |
| 2921.59.8010 | 3,3'-Dichlorobenzidine dihydrochloride (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > Other > Other > Other) | 6.5% | kg |
| 2921.59.8090 | Other (Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof > Other > Other > Other) | 6.5% | kg |
Documents required to import under 2921
Customs paperwork typically required to import these goods into the United States. Conditional items depend on shipment value, transport mode, or origin.
- Commercial InvoiceRequired
- Packing ListRequired
- Bill of Lading / Airway BillRequired
- CBP Entry Summary (7501)Required
Prepared and filed by your customs broker
- CBP Entry / Release (3461)Required
Prepared and filed by your customs broker
- Customs Bond (CBP 301)Conditional
Required for formal entries — generally shipments valued over $2,500
Single-entry or continuous bond, obtained through your broker or a surety
- Importer Security Filing (ISF "10+2")Conditional
Required for ocean freight only
Filed electronically at least 24 hours before loading at the foreign port
- Importer ID Input Record (CBP 5106)Conditional
Required to establish or update your importer-of-record number with CBP
One-time setup for a new importer; not filed per shipment
- Entry Manifest (CBP 7533)Conditional
Alternative to the 3461 for informal, low-value, or contiguous-country entries
- Safety Data Sheet (SDS/MSDS)Required
- EPA TSCA CertificationConditional
Required for chemical substances regulated under TSCA
- EPA Notice of Arrival (Form 3540-1)Conditional
Required for pesticides and devices (typically Ch. 38)
Common questions
- What is HTS code 2921?
- HTS heading 2921 covers amine-function compounds. It sits in Chapter 29 (organic chemicals) of the US Harmonized Tariff Schedule and contains 76 tariff lines.
- What is the duty rate for HTS 2921?
- General duty rates from 3.7% to 6.5%, with 14 duty-free lines. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.
- How many digits does a full HTS code have?
- US import entries require the full 10-digit HTS code. Heading 2921 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.
Related headings in Chapter 29
- 2901Acyclic hydrocarbons
- 2902Cyclic hydrocarbons
- 2903Halogenated derivatives of hydrocarbons
- 2904Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated
- 2905Acyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives
- 2906Cyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives
- 2907Phenols; phenol-alcohols
- 2908Halogenated, sulfonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols