# United States tariff lines under HS 2921.46

> The United States tariff splits HS 2921.46 (aromatic monoamines and their derivatives; salts thereof: Amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof) into 1 national line: 2921.46.00.00 (amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof). Every United States line under 2921.46 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/292146
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) / [2921.46](https://border.bot/countries/united-states/hs-codes/292146)

## Key facts

- HS subheading: [2921.46](https://border.bot/hs-codes/292146)
- Duty (MFN): Free
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2921.46

The United States tariff splits HS 2921.46 (aromatic monoamines and their derivatives; salts thereof: Amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof) into 1 national line: 2921.46.00.00 (amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof).

Every United States line under 2921.46 is free of general (MFN) duty.

- [2921.46.00.00](https://border.bot/countries/united-states/hs-codes/2921460000) Aromatic monoamines and their derivatives; salts thereof, Amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 2921.46 yet.

- [The Harmonized System text for 2921.46](https://border.bot/hs-codes/292146)

- Previous subheading: [2921.45](https://border.bot/countries/united-states/hs-codes/292145) 1-Naphthylamine (α-Naphthylamine), 2-Naphthylamine (β-Naphthylamine), and their derivatives; salts thereof
- Next subheading: [2921.49](https://border.bot/countries/united-states/hs-codes/292149) Other

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2921.46?

The United States tariff splits HS 2921.46 (aromatic monoamines and their derivatives; salts thereof: Amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof) into 1 national line: 2921.46.00.00 (amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof).

### What is the duty on HS 2921.46 in the United States?

Every United States line under 2921.46 is free of general (MFN) duty.

## 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/292146.json