# United States tariff line 2933.79.40.00: 12-Aminododecanoic acid lactam

> In the United States tariff, line 2933.79.40.00 covers lactams, other lactams, 12-Aminododecanoic acid lactam. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2933.79 in heading 29.33 (chapter 29).

Source: https://border.bot/countries/united-states/hs-codes/2933794000
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) / [2933.79](https://border.bot/countries/united-states/hs-codes/293379) / [2933.79.40.00](https://border.bot/countries/united-states/hs-codes/2933794000)

## Key facts

- Tariff line: 2933.79.40.00
- Covers: Lactams, other lactams, 12-Aminododecanoic acid lactam
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2933.79](https://border.bot/hs-codes/293379)

## What this line covers

In the United States tariff, line 2933.79.40.00 covers lactams, other lactams, 12-Aminododecanoic acid lactam.

Its legal text is “12-Aminododecanoic acid lactam”, read under “Lactams”, “Other lactams” and “Other”.

## How it is structured

It falls under HS subheading 2933.79 in heading 29.33 (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 29.33: Heterocyclic compounds with nitrogen hetero-atom(s) only
- Subheading 2933.79: Lactams
- Within the subheading: Other lactams
- Within the subheading: Other
- Line 2933.79.40.00: 12-Aminododecanoic acid lactam

## Duty

Goods under this line enter free of general (MFN) duty.

## In other countries

No other national tariff on border.bot has live lines under 2933.79 yet.

- [The Harmonized System text for 2933.79](https://border.bot/hs-codes/293379)

## Other lines under 2933.79

- [2933.79.04.00](https://border.bot/countries/united-states/hs-codes/2933790400) 2,5-Dihydro-3,6-diphenylpyrrolo-(3,4-c)- pyrrole-1,4-dione
- [2933.79.08.00](https://border.bot/countries/united-states/hs-codes/2933790800) Products described in additional U.S. note 3 to section VI
- [2933.79.15.00](https://border.bot/countries/united-states/hs-codes/2933791500) Other
- [2933.79.20.00](https://border.bot/countries/united-states/hs-codes/2933792000) N-Methyl-2-pyrrolidone; and 2-Pyrrolidone
- [2933.79.30.00](https://border.bot/countries/united-states/hs-codes/2933793000) N-Vinyl-2-pyrrolidone, monomer
- [2933.79.85.00](https://border.bot/countries/united-states/hs-codes/2933798500) Other

- Previous line: [2933.79.30.00](https://border.bot/countries/united-states/hs-codes/2933793000) N-Vinyl-2-pyrrolidone, monomer
- Next line: [2933.79.85.00](https://border.bot/countries/united-states/hs-codes/2933798500) Other

## Frequently asked questions

### What does tariff line 2933.79.40.00 cover in the United States tariff?

In the United States tariff, line 2933.79.40.00 covers lactams, other lactams, 12-Aminododecanoic acid lactam.

### What is the general (MFN) duty on 2933.79.40.00 in the United States?

Goods under this line enter 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/2933794000.json