# United States tariff line 2909.49.05.00: Guaifenesin

> In the United States tariff, line 2909.49.05.00 covers ether-alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives, aromatic, guaifenesin. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2909.49 in heading 29.09 (chapter 29).

Source: https://border.bot/countries/united-states/hs-codes/2909490500
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) / [2909.49](https://border.bot/countries/united-states/hs-codes/290949) / [2909.49.05.00](https://border.bot/countries/united-states/hs-codes/2909490500)

## Key facts

- Tariff line: 2909.49.05.00
- Covers: Ether-alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives, aromatic, guaifenesin
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2909.49](https://border.bot/hs-codes/290949)

## What this line covers

In the United States tariff, line 2909.49.05.00 covers ether-alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives, aromatic, guaifenesin.

Its legal text is “Guaifenesin”, read under “Ether-alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives”, “Other” and “Aromatic”.

## How it is structured

It falls under HS subheading 2909.49 in heading 29.09 (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 29.09: Ethers, ether-alcohols, ether-phenols, ether-alcohol- phenols, alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides (whether or not chemically defined), and their halogenated, sulfonated, nitrated or nitrosated derivatives
- Subheading 2909.49: Ether-alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives
- Within the subheading: Other
- Within the subheading: Aromatic
- Line 2909.49.05.00: Guaifenesin

## 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 2909.49 yet.

- [The Harmonized System text for 2909.49](https://border.bot/hs-codes/290949)

## Other lines under 2909.49

- [2909.49.10.00](https://border.bot/countries/united-states/hs-codes/2909491000) Products described in additional U.S. note 3 to section VI
- [2909.49.15.00](https://border.bot/countries/united-states/hs-codes/2909491500) Other
- [2909.49.20.00](https://border.bot/countries/united-states/hs-codes/2909492000) Glycerol ethers
- [2909.49.30.00](https://border.bot/countries/united-states/hs-codes/2909493000) Dipentaerythritol having a purity of 94 percent or more by weight
- [2909.49.60.00](https://border.bot/countries/united-states/hs-codes/2909496000) Other

- Previous line: [2909.44.01.50](https://border.bot/countries/united-states/hs-codes/2909440150) Other
- Next line: [2909.49.10.00](https://border.bot/countries/united-states/hs-codes/2909491000) Products described in additional U.S. note 3 to section VI

## Frequently asked questions

### What does tariff line 2909.49.05.00 cover in the United States tariff?

In the United States tariff, line 2909.49.05.00 covers ether-alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives, aromatic, guaifenesin.

### What is the general (MFN) duty on 2909.49.05.00 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/2909490500.json