# United States tariff lines under HS 2921.49

> The United States tariff splits HS 2921.49 (aromatic monoamines and their derivatives; salts thereof: Other) into 7 national lines: 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; and 3,4-Xylidine), 2921.49.15.00 (m-Nitro-p-toluidine), 2921.49.32.00 (fast color bases), 2921.49.38.00 (antidepressants, tranquilizers and other psychotherapeutic agents) and 3 others. The general (MFN) duty differs by line: 5.8% on 2921.49.10.00, free on 2921.49.15.00, 6.5% on 2921.49.32.00, 6.5% on 2921.49.38.00, 6.5% on 2921.49.43.00, 6.5% on 2921.49.45.00 and 6.5% on 2921.49.50.00.

Source: https://border.bot/countries/united-states/hs-codes/292149
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) / [2921.49](https://border.bot/countries/united-states/hs-codes/292149)

## Key facts

- HS subheading: [2921.49](https://border.bot/hs-codes/292149)
- National lines: 7
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2921.49

The United States tariff splits HS 2921.49 (aromatic monoamines and their derivatives; salts thereof: Other) into 7 national lines: 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; and 3,4-Xylidine), 2921.49.15.00 (m-Nitro-p-toluidine), 2921.49.32.00 (fast color bases), 2921.49.38.00 (antidepressants, tranquilizers and other psychotherapeutic agents) and 3 others.

The general (MFN) duty differs by line: 5.8% on 2921.49.10.00, free on 2921.49.15.00, 6.5% on 2921.49.32.00, 6.5% on 2921.49.38.00, 6.5% on 2921.49.43.00, 6.5% on 2921.49.45.00 and 6.5% on 2921.49.50.00.

- [2921.49.10.00](https://border.bot/countries/united-states/hs-codes/2921491000) Aromatic monoamines and their derivatives; salts thereof, Other, 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. Duty (MFN): 5.8%
- [2921.49.15.00](https://border.bot/countries/united-states/hs-codes/2921491500) Aromatic monoamines and their derivatives; salts thereof, Other, m-Nitro-p-toluidine. Duty (MFN): free
- [2921.49.32.00](https://border.bot/countries/united-states/hs-codes/2921493200) Aromatic monoamines and their derivatives; salts thereof, Other, Other, Fast color bases. Duty (MFN): 6.5%
- [2921.49.38.00](https://border.bot/countries/united-states/hs-codes/2921493800) Aromatic monoamines and their derivatives; salts thereof, Other, Other, Drugs, Antidepressants, tranquilizers and other psychotherapeutic agents. Duty (MFN): 6.5%
- [2921.49.43.00](https://border.bot/countries/united-states/hs-codes/2921494300) Aromatic monoamines and their derivatives; salts thereof, Other, Other, Drugs, Other. Duty (MFN): 6.5%
- [2921.49.45.00](https://border.bot/countries/united-states/hs-codes/2921494500) Aromatic monoamines and their derivatives; salts thereof, Other, Other, Other, Products described in additional U.S. note 3 to section VI. Duty (MFN): 6.5%
- [2921.49.50.00](https://border.bot/countries/united-states/hs-codes/2921495000) Aromatic monoamines and their derivatives; salts thereof, Other, Other, Other, Other. Duty (MFN): 6.5%

## In other countries

No other national tariff on border.bot has live lines under 2921.49 yet.

- [The Harmonized System text for 2921.49](https://border.bot/hs-codes/292149)

- Previous subheading: [2921.46](https://border.bot/countries/united-states/hs-codes/292146) Amine-function compounds
- Next subheading: [2921.51](https://border.bot/countries/united-states/hs-codes/292151) o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2921.49?

The United States tariff splits HS 2921.49 (aromatic monoamines and their derivatives; salts thereof: Other) into 7 national lines: 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; and 3,4-Xylidine), 2921.49.15.00 (m-Nitro-p-toluidine), 2921.49.32.00 (fast color bases), 2921.49.38.00 (antidepressants, tranquilizers and other psychotherapeutic agents) and 3 others.

### What is the duty on HS 2921.49 in the United States?

The general (MFN) duty differs by line: 5.8% on 2921.49.10.00, free on 2921.49.15.00, 6.5% on 2921.49.32.00, 6.5% on 2921.49.38.00, 6.5% on 2921.49.43.00, 6.5% on 2921.49.45.00 and 6.5% on 2921.49.50.00.

## 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/292149.json