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2921.59.17.00/1,4-Diaminobenzene-2-Sulfonic Acid/Canada

1,4-Diaminobenzene-2-Sulfonic Acid from Canada

Also known as 4-amino-2-aminobenzenesulfonic acid, this aromatic diamine with a sulfonic acid substituent is specifically named in HTS 2921.59.1700. It serves as a key building block for azo dyes and pharmaceutical intermediates.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Include detailed spectral analysis (NMR, IR) in documentation to distinguish from similar aniline derivatives

• Check for REACH-like compliance; provide safety data sheets highlighting amine and sulfonic acid hazards