# United States tariff line 2921.43.15.00: α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin)

> In the United States tariff, line 2921.43.15.00 covers aromatic monoamines and their derivatives; salts thereof, toluidines and their derivatives; salts thereof, α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin). The general (MFN) duty rate is 6.5%. It falls under HS subheading 2921.43 in heading 29.21 (chapter 29).

Source: https://border.bot/countries/united-states/hs-codes/2921431500
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 29](https://border.bot/countries/united-states/hs-codes/29) / [2921.43](https://border.bot/countries/united-states/hs-codes/292143) / [2921.43.15.00](https://border.bot/countries/united-states/hs-codes/2921431500)

## Key facts

- Tariff line: 2921.43.15.00
- Covers: Aromatic monoamines and their derivatives; salts thereof, toluidines and their derivatives; salts thereof, α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin)
- Duty (MFN): 6.5%
- Preferential rates: From free (17 programmes or origins)
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2921.43](https://border.bot/hs-codes/292143)

## What this line covers

In the United States tariff, line 2921.43.15.00 covers aromatic monoamines and their derivatives; salts thereof, toluidines and their derivatives; salts thereof, α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin).

Its legal text is “α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin)”, read under “Aromatic monoamines and their derivatives; salts thereof” and “Toluidines and their derivatives; salts thereof”.

Products commonly classified here include α,α,α-Trifluoro-2,6-dinitro-p-toluidine (Trifluralin) (CAS No. 1582-09-8) (border.bot’s search keywords, not legal text).

## How it is structured

It falls under HS subheading 2921.43 in heading 29.21 (chapter 29). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 29: Organic chemicals
- Heading 29.21: Amine-function compounds
- Subheading 2921.43: Aromatic monoamines and their derivatives; salts thereof
- Within the subheading: Toluidines and their derivatives; salts thereof
- Line 2921.43.15.00: α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin)

## Duty

The general (MFN) duty rate is 6.5%.

Duty-free entry applies to goods that qualify under 16 programmes, and to goods from a group of origins (origin group A).

- Free: a group of origins (origin group A) (A)
- Free: United States-Australia Free Trade Agreement (AU)
- Free: United States-Bahrain Free Trade Agreement Implementation Act (BH)
- Free: United States-Chile Free Trade Agreement (CL)
- Free: United States-Colombia Trade Promotion Agreement Implementation Act (CO)
- Free: African Growth and Opportunity Act (D)
- Free: Caribbean Basin Economic Recovery Act (E)
- Free: United States-Israel Free Trade Area (IL)
- Free: United States-Jordan Free Trade Area Implementation Act (JO)
- Free: United States-Korea Free Trade Agreement Implementation Act (KR)
- Free: United States-Morocco Free Trade Agreement Implementation Act (MA)
- Free: United States-Oman Free Trade Agreement Implementation Act (OM)
- Free: Dominican Republic-Central America-United States Free Trade Agreement (P)
- Free: United States-Panama Trade Promotion Agreement Implementation Act (PA)
- Free: United States-Peru Trade Promotion Agreement Implementation Act (PE)
- Free: United States-Mexico-Canada Agreement (S)
- Free: United States-Singapore Free Trade Agreement (SG)

## In other countries

No other national tariff on border.bot has live lines under 2921.43 yet.

- [The Harmonized System text for 2921.43](https://border.bot/hs-codes/292143)

## Other lines under 2921.43

- [2921.43.04.00](https://border.bot/countries/united-states/hs-codes/2921430400) 3-Chloro-o-toluidine; and 6-Chloro-o-toluidine
- [2921.43.08.00](https://border.bot/countries/united-states/hs-codes/2921430800) 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
- [2921.43.19.00](https://border.bot/countries/united-states/hs-codes/2921431900) α,α,α-Trifluoro-o-toluidine; andα,α,α-Trifluoro-6-chloro-m-toluidine
- [2921.43.22.00](https://border.bot/countries/united-states/hs-codes/2921432200) N-Ethyl-N-(2-methyl-2-propenyl)-2,6- dinitro-4-(trifluoromethyl)benzenamine
- [2921.43.24.00](https://border.bot/countries/united-states/hs-codes/2921432400) 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)
- [2921.43.40.00](https://border.bot/countries/united-states/hs-codes/2921434000) Products described in additional U.S. note 3 to section VI
- [2921.43.90.20](https://border.bot/countries/united-states/hs-codes/2921439020) 2-Chloro-p-toluidine-5-sulfonic acid (CAS No. 88-51-7)
- [2921.43.90.40](https://border.bot/countries/united-states/hs-codes/2921439040) p-Toluidine-m-sulfonic acid (CAS No. 88-44-8)
- [2921.43.90.90](https://border.bot/countries/united-states/hs-codes/2921439090) Other

- Previous line: [2921.43.08.00](https://border.bot/countries/united-states/hs-codes/2921430800) 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
- Next line: [2921.43.19.00](https://border.bot/countries/united-states/hs-codes/2921431900) α,α,α-Trifluoro-o-toluidine; andα,α,α-Trifluoro-6-chloro-m-toluidine

## Frequently asked questions

### What does tariff line 2921.43.15.00 cover in the United States tariff?

In the United States tariff, line 2921.43.15.00 covers aromatic monoamines and their derivatives; salts thereof, toluidines and their derivatives; salts thereof, α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p- toluidine (Trifluralin).

### What is the general (MFN) duty on 2921.43.15.00 in the United States?

The general (MFN) duty rate is 6.5%.

### Which preferential rates apply to 2921.43.15.00?

Duty-free entry applies to goods that qualify under 16 programmes: the United States-Australia Free Trade Agreement, the United States-Bahrain Free Trade Agreement Implementation Act, the United States-Chile Free Trade Agreement, the United States-Colombia Trade Promotion Agreement Implementation Act, African Growth and Opportunity Act, Caribbean Basin Economic Recovery Act, the United States-Israel Free Trade Area, the United States-Jordan Free Trade Area Implementation Act, the United States-Korea Free Trade Agreement Implementation Act, the United States-Morocco Free Trade Agreement Implementation Act, the United States-Oman Free Trade Agreement Implementation Act, the Dominican Republic-Central America-United States Free Trade Agreement, the United States-Panama Trade Promotion Agreement Implementation Act, the United States-Peru Trade Promotion Agreement Implementation Act, the United States-Mexico-Canada Agreement and the United States-Singapore Free Trade Agreement, and to goods from a group of origins (origin group A).

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/2921431500.json