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2922.21.50.00/Sodium Salt of 1-Amino-8-naphthol-3,6-disulfonic Acid (H Acid)/Canada

Sodium Salt of 1-Amino-8-naphthol-3,6-disulfonic Acid (H Acid) from Canada

H Acid sodium salt is a critical coupling component for reactive dyes, featuring amino-hydroxy-disulfonic functions on naphthalene. It meets Chapter 29 criteria for chemically defined amino-oxygen compounds and their salts. Positioned in 2922.21.5000 as 'other' aminohydroxynaphthalenesulfonic acids.

Duty Rate — Canada → United States

16.5%

Rate breakdown

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

• Declare exact salt form and water content; discrepancies lead to duty disputes

• Use HTSUS advisory rulings for multi-sulfonic derivatives to preempt CBP challenges

• Avoid packaging resembling retail dye forms (Chapter 32 exclusion)

Sodium Salt of 1-Amino-8-naphthol-3,6-disulfonic Acid (H Acid) from Canada — Import Duty Rate | HTS 2922.21.50.00