# United States tariff line 3204.20.40.00: Benzoxazol

> In the United States tariff, line 3204.20.40.00 covers synthetic organic products of a kind used as fluorescent brightening agents, benzoxazol. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 3204.20 in heading 32.04 (chapter 32).

Source: https://border.bot/countries/united-states/hs-codes/3204204000
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 32](https://border.bot/countries/united-states/hs-codes/32) / [3204.20](https://border.bot/countries/united-states/hs-codes/320420) / [3204.20.40.00](https://border.bot/countries/united-states/hs-codes/3204204000)

## Key facts

- Tariff line: 3204.20.40.00
- Covers: Synthetic organic products of a kind used as fluorescent brightening agents, benzoxazol
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [3204.20](https://border.bot/hs-codes/320420)

## What this line covers

In the United States tariff, line 3204.20.40.00 covers synthetic organic products of a kind used as fluorescent brightening agents, benzoxazol.

Its legal text is “Benzoxazol”, read under “Synthetic organic products of a kind used as fluorescent brightening agents”.

## How it is structured

It falls under HS subheading 3204.20 in heading 32.04 (chapter 32). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 32: Tanning or dyeing extracts; tannins and their derivatives; dyes, pigments and other colouring matter; paints and varnishes; putty and other mastics; inks
- Heading 32.04: Synthetic organic coloring matter, whether or not chemically defined; preparations as specified in note 3 to this chapter based on synthetic organic coloring matter; synthetic organic products of a kind used as fluorescent brightening agents or as luminophores, whether or not chemically defined
- Subheading 3204.20: Synthetic organic products of a kind used as fluorescent brightening agents
- Line 3204.20.40.00: Benzoxazol

## 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 3204.20 yet.

- [The Harmonized System text for 3204.20](https://border.bot/hs-codes/320420)

## Other lines under 3204.20

- [3204.20.10.00](https://border.bot/countries/united-states/hs-codes/3204201000) Fluorescent brightening agent 32
- [3204.20.80.00](https://border.bot/countries/united-states/hs-codes/3204208000) Other

- Previous line: [3204.20.10.00](https://border.bot/countries/united-states/hs-codes/3204201000) Fluorescent brightening agent 32
- Next line: [3204.20.80.00](https://border.bot/countries/united-states/hs-codes/3204208000) Other

## Frequently asked questions

### What does tariff line 3204.20.40.00 cover in the United States tariff?

In the United States tariff, line 3204.20.40.00 covers synthetic organic products of a kind used as fluorescent brightening agents, benzoxazol.

### What is the general (MFN) duty on 3204.20.40.00 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/3204204000.json