# United States tariff line 2939.19.10.00: Papaverine and its salts

> In the United States tariff, line 2939.19.10.00 covers alkaloids of opium and their derivatives; salts thereof, papaverine and its salts. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2939.19 in heading 29.39 (chapter 29).

Source: https://border.bot/countries/united-states/hs-codes/2939191000
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) / [2939.19](https://border.bot/countries/united-states/hs-codes/293919) / [2939.19.10.00](https://border.bot/countries/united-states/hs-codes/2939191000)

## Key facts

- Tariff line: 2939.19.10.00
- Covers: Alkaloids of opium and their derivatives; salts thereof, papaverine and its salts
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2939.19](https://border.bot/hs-codes/293919)

## What this line covers

In the United States tariff, line 2939.19.10.00 covers alkaloids of opium and their derivatives; salts thereof, papaverine and its salts.

Its legal text is “Papaverine and its salts”, read under “Alkaloids of opium and their derivatives; salts thereof” and “Other”.

## How it is structured

It falls under HS subheading 2939.19 in heading 29.39 (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 29.39: Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives
- Subheading 2939.19: Alkaloids of opium and their derivatives; salts thereof
- Within the subheading: Other
- Line 2939.19.10.00: Papaverine and its salts

## 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 2939.19 yet.

- [The Harmonized System text for 2939.19](https://border.bot/hs-codes/293919)

## Other lines under 2939.19

- [2939.19.20.00](https://border.bot/countries/united-states/hs-codes/2939192000) Synthetic
- [2939.19.50.00](https://border.bot/countries/united-states/hs-codes/2939195000) Other

- Previous line: [2939.11.00.00](https://border.bot/countries/united-states/hs-codes/2939110000) Concentrates of poppy straw; buprenorphine (INN); codeine, dihydrocodeine (INN), ethylmorphine, etorphine (INN), heroin, hydrocodone (INN), hydromorphone (INN), morphine, nicomorphine (INN), oxycodone (INN), oxymorphone (INN), pholcodine (INN), thebacon (INN) and thebaine; salts thereof
- Next line: [2939.19.20.00](https://border.bot/countries/united-states/hs-codes/2939192000) Synthetic

## Frequently asked questions

### What does tariff line 2939.19.10.00 cover in the United States tariff?

In the United States tariff, line 2939.19.10.00 covers alkaloids of opium and their derivatives; salts thereof, papaverine and its salts.

### What is the general (MFN) duty on 2939.19.10.00 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/2939191000.json