# United States tariff lines under HS 2939.19

> The United States tariff splits HS 2939.19 (alkaloids of opium and their derivatives; salts thereof: Other) into 3 national lines: 2939.19.10.00 (papaverine and its salts), 2939.19.20.00 (synthetic) and 2939.19.50.00 (other). Every United States line under 2939.19 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/293919
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)

## Key facts

- HS subheading: [2939.19](https://border.bot/hs-codes/293919)
- Duty (MFN): Free
- National lines: 3
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2939.19

The United States tariff splits HS 2939.19 (alkaloids of opium and their derivatives; salts thereof: Other) into 3 national lines: 2939.19.10.00 (papaverine and its salts), 2939.19.20.00 (synthetic) and 2939.19.50.00 (other).

Every United States line under 2939.19 is free of general (MFN) duty.

- [2939.19.10.00](https://border.bot/countries/united-states/hs-codes/2939191000) Alkaloids of opium and their derivatives; salts thereof, Other, Papaverine and its salts. Duty (MFN): free
- [2939.19.20.00](https://border.bot/countries/united-states/hs-codes/2939192000) Alkaloids of opium and their derivatives; salts thereof, Other, Other, Synthetic. Duty (MFN): free
- [2939.19.50.00](https://border.bot/countries/united-states/hs-codes/2939195000) Alkaloids of opium and their derivatives; salts thereof, Other, Other, Other. Duty (MFN): free

## 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)

- Previous subheading: [2939.11](https://border.bot/countries/united-states/hs-codes/293911) Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives
- Next subheading: [2939.20](https://border.bot/countries/united-states/hs-codes/293920) Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2939.19?

The United States tariff splits HS 2939.19 (alkaloids of opium and their derivatives; salts thereof: Other) into 3 national lines: 2939.19.10.00 (papaverine and its salts), 2939.19.20.00 (synthetic) and 2939.19.50.00 (other).

### What is the duty on HS 2939.19 in the United States?

Every United States line under 2939.19 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/293919.json