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HTSUS, United States

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

Classification path

  1. Diazo-, azo- or azoxy-compounds
  2. 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

Rates of duty

General (MFN)
Free
Column 2Cuba, North Korea, Russia, Belarus
15.4¢/kg + 50%
Unit of quantity
kg

Related lines in heading 2927

About heading 2927

Diazo-, azo- or azoxy-compounds

Heading 2927 covers diazo, azo, and azoxy compounds. It has lines for specific named compounds and residual lines for photographic chemicals, fast color bases and salts, section VI note 3 products, and other compounds.

Full guide to heading 2927

Products in this heading

  • 4-Aminoazobenzenedisulfonic acid, monosodium salt, a dye intermediate (2927.00.03.00)
  • p-Aminoazobenzenedisulfonic acid, a dye intermediate (2927.00.06.00)
  • Diazoaminobenzene (1,3-Diphenyltriazene) (2927.00.06.00)
  • 1,1'-Azobisformamide, a blowing agent (2927.00.15.00)
  • Diazo photographic chemicals (2927.00.25.00)
  • Fast color bases and fast color salts for dyes (2927.00.30.00)
  • Azo compounds not named in earlier lines (2927.00.50.00)

Frequently asked questions

What is the HTS code for 1,1'-Azobisformamide?

1,1'-Azobisformamide is classified in 2927.00.15.00, with a general (MFN) duty rate of 3.7%.

What is the duty on fast color bases and fast color salts?

Fast color bases and fast color salts under 2927.00.30.00 have a general (MFN) duty rate of 6.5%.

How do I classify a diazo compound used as a photographic chemical?

A diazo compound used as a photographic chemical is classified in 2927.00.25.00, with a general (MFN) duty rate of 6.5%.

Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.

HTS 2927.00.18.00: 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo, este..., Free duty | HTSBase