HS Code 292221

Aminohydroxynaphthalenesulfonic acids and their salts:

HS code292221
DescriptionAminohydroxynaphthalenesulfonic acids and their salts:
Chapter29
SectionVI — Products of the chemical or allied industries

The first six digits of an HS code are harmonized worldwide. Countries extend it with extra digits and their own duty rates — below are the US HTS (10-digit) equivalents. Always confirm with official customs sources before shipping.

US HTS equivalents (4)

HTS codeDescriptionDuty
29222110001-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid; 4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid (Chicago acid); 4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid, potassium salt; 4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid, sodium salt; 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, monosodium salt (H acid, monosodium salt); 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, potassium salt (H acid, monopotassium salt); 4-Amino-3-hydroxy-1-naphthalenesulfonic acid; 6-Amino-1-naphthol-3-sulfonic acid and its salts; and 8-Amino-1-naphthol-5-sulfonic acid and its salts5.8%
29222125001-Amino-8-hydroxy-4,6-naphthalenedisulfonic acid, monosodium saltFree
2922214000Products described in additional U.S. note 3 to section VI6.5%
2922215000Other6.5%

More codes in Chapter 29