# United States tariff line 2927.00.03.00: 4-Aminoazobenzenedisulfonic acid, monosodium salt

> In the United States tariff, line 2927.00.03.00 covers 4-Aminoazobenzenedisulfonic acid, monosodium salt. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2927.00 in heading 29.27 (chapter 29).

Source: https://border.bot/countries/united-states/hs-codes/2927000300
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) / [2927.00](https://border.bot/countries/united-states/hs-codes/292700) / [2927.00.03.00](https://border.bot/countries/united-states/hs-codes/2927000300)

## Key facts

- Tariff line: 2927.00.03.00
- Covers: 4-Aminoazobenzenedisulfonic acid, monosodium salt
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2927.00](https://border.bot/hs-codes/292700)

## What this line covers

In the United States tariff, line 2927.00.03.00 covers 4-Aminoazobenzenedisulfonic acid, monosodium salt.

Its legal text is “4-Aminoazobenzenedisulfonic acid, monosodium salt”.

## How it is structured

It falls under HS subheading 2927.00 in heading 29.27 (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 29.27: Diazo-, azo- or azoxy-compounds
- Line 2927.00.03.00: 4-Aminoazobenzenedisulfonic acid, monosodium salt

## 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 2927.00 yet.

- [The Harmonized System text for 2927.00](https://border.bot/hs-codes/292700)

## Other lines under 2927.00

- [2927.00.06.00](https://border.bot/countries/united-states/hs-codes/2927000600) p-Aminoazobenzenedisulfonic acid; and Diazoaminobenzene (1,3-Diphenyltriazene)
- [2927.00.15.00](https://border.bot/countries/united-states/hs-codes/2927001500) 1,1'-Azobisformamide
- [2927.00.18.00](https://border.bot/countries/united-states/hs-codes/2927001800) 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo, ester with phenyl(2,3,4-trihydroxyphenyl)methanone; 1-Naphthalenesulfonic acid, 3-diazo-3,4-dihydro-4- oxo-ar'-(1-methylethyl) [1,1'-biphenyl]-4-yl ester; 1-Napthanlenesulfonic acid, 6-diazo-5,6-dihydro-5- oxo-,(octahydro-4,7-methano-1H-indene-2,5-diyl) bis- (methylene) ester; and 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5- oxo-, 4-benzoyl-1,2,3-benzenetriyl ester
- [2927.00.25.00](https://border.bot/countries/united-states/hs-codes/2927002500) Photographic chemicals
- [2927.00.30.00](https://border.bot/countries/united-states/hs-codes/2927003000) Fast color bases and fast color salts
- [2927.00.40.00](https://border.bot/countries/united-states/hs-codes/2927004000) Products described in additional U.S. note 3 to section VI
- [2927.00.50.00](https://border.bot/countries/united-states/hs-codes/2927005000) Other

- Previous line: [2926.90.50.50](https://border.bot/countries/united-states/hs-codes/2926905050) Other
- Next line: [2927.00.06.00](https://border.bot/countries/united-states/hs-codes/2927000600) p-Aminoazobenzenedisulfonic acid; and Diazoaminobenzene (1,3-Diphenyltriazene)

## Frequently asked questions

### What does tariff line 2927.00.03.00 cover in the United States tariff?

In the United States tariff, line 2927.00.03.00 covers 4-Aminoazobenzenedisulfonic acid, monosodium salt.

### What is the general (MFN) duty on 2927.00.03.00 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/2927000300.json