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1-Naphthylamine-5-sulfonic Acid (Laurent's Acid) from Canada

Laurent's acid, a monosulfonated 1-naphthylamine derivative, is classified under HTS 2921.45.60.00 as specified in additional U.S. note 3. Used in manufacturing of acid dyes for wool and silk.

Duty Rate — Canada → United States

16.5%

Rate breakdown

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

Import Tips

Include batch-specific chromatograms confirming >98% purity

Comply with EPA chemical import notification requirements

Declare as 'not for medicinal use' to avoid pharmaceutical chapter confusion

1-Naphthylamine-5-sulfonic Acid (Laurent's Acid) from Canada — Import Duty Rate | HTS 2921.45.60.00