# United States tariff lines under HS 2927.00

> The United States tariff splits HS 2927.00 (diazo-, azo- or azoxy-compounds) into 8 national lines: 2927.00.03.00 (4-Aminoazobenzenedisulfonic acid, monosodium salt), 2927.00.06.00 (p-Aminoazobenzenedisulfonic acid; and Diazoaminobenzene (1,3-Diphenyltriazene)), 2927.00.15.00 (1,1'-Azobisformamide), 2927.00.18.00 (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) and 4 others. The general (MFN) duty differs by line: free on 2927.00.03.00, 5.8% on 2927.00.06.00, 3.7% on 2927.00.15.00, free on 2927.00.18.00, 6.5% on 2927.00.25.00, 6.5% on 2927.00.30.00, 6.5% on 2927.00.40.00 and 6.5% on 2927.00.50.00.

Source: https://border.bot/countries/united-states/hs-codes/292700
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)

## Key facts

- HS subheading: [2927.00](https://border.bot/hs-codes/292700)
- National lines: 8
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2927.00

The United States tariff splits HS 2927.00 (diazo-, azo- or azoxy-compounds) into 8 national lines: 2927.00.03.00 (4-Aminoazobenzenedisulfonic acid, monosodium salt), 2927.00.06.00 (p-Aminoazobenzenedisulfonic acid; and Diazoaminobenzene (1,3-Diphenyltriazene)), 2927.00.15.00 (1,1'-Azobisformamide), 2927.00.18.00 (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) and 4 others.

The general (MFN) duty differs by line: free on 2927.00.03.00, 5.8% on 2927.00.06.00, 3.7% on 2927.00.15.00, free on 2927.00.18.00, 6.5% on 2927.00.25.00, 6.5% on 2927.00.30.00, 6.5% on 2927.00.40.00 and 6.5% on 2927.00.50.00.

- [2927.00.03.00](https://border.bot/countries/united-states/hs-codes/2927000300) 4-Aminoazobenzenedisulfonic acid, monosodium salt. Duty (MFN): free
- [2927.00.06.00](https://border.bot/countries/united-states/hs-codes/2927000600) p-Aminoazobenzenedisulfonic acid; and Diazoaminobenzene (1,3-Diphenyltriazene). Duty (MFN): 5.8%
- [2927.00.15.00](https://border.bot/countries/united-states/hs-codes/2927001500) 1,1'-Azobisformamide. Duty (MFN): 3.7%
- [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. Duty (MFN): free
- [2927.00.25.00](https://border.bot/countries/united-states/hs-codes/2927002500) Other, Photographic chemicals. Duty (MFN): 6.5%
- [2927.00.30.00](https://border.bot/countries/united-states/hs-codes/2927003000) Other, Fast color bases and fast color salts. Duty (MFN): 6.5%
- [2927.00.40.00](https://border.bot/countries/united-states/hs-codes/2927004000) Other, Other, Products described in additional U.S. note 3 to section VI. Duty (MFN): 6.5%
- [2927.00.50.00](https://border.bot/countries/united-states/hs-codes/2927005000) Other, Other, Other. Duty (MFN): 6.5%

## 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)

- Previous subheading: [2926.90](https://border.bot/countries/united-states/hs-codes/292690) Other
- Next subheading: [2928.00](https://border.bot/countries/united-states/hs-codes/292800) Organic derivatives of hydrazine or of hydroxylamine

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2927.00?

The United States tariff splits HS 2927.00 (diazo-, azo- or azoxy-compounds) into 8 national lines: 2927.00.03.00 (4-Aminoazobenzenedisulfonic acid, monosodium salt), 2927.00.06.00 (p-Aminoazobenzenedisulfonic acid; and Diazoaminobenzene (1,3-Diphenyltriazene)), 2927.00.15.00 (1,1'-Azobisformamide), 2927.00.18.00 (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) and 4 others.

### What is the duty on HS 2927.00 in the United States?

The general (MFN) duty differs by line: free on 2927.00.03.00, 5.8% on 2927.00.06.00, 3.7% on 2927.00.15.00, free on 2927.00.18.00, 6.5% on 2927.00.25.00, 6.5% on 2927.00.30.00, 6.5% on 2927.00.40.00 and 6.5% on 2927.00.50.00.

## 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/292700.json