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2921.45.10.00/8-Amino-1-naphthalenesulfonic Acid (Free Acid Form)/Canada

8-Amino-1-naphthalenesulfonic Acid (Free Acid Form) from Canada

Free acid form of Schaeffer's acid used where strong acidic conditions needed in dye processes. Specifically listed under HTS 2921.45.10.00 covering both acids and salts. Pure chemically defined aromatic sulfonic acid amine.

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

• pH verification required; free acid form < pH 2 confirms not salt form

• Corrosive handling precautions mandatory per DOT/ADR regulations

8-Amino-1-naphthalenesulfonic Acid (Free Acid Form) from Canada — Import Duty Rate | HTS 2921.45.10.00