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2921.42.90.00/4-Aminobenzenesulfonic Acid (Sulfanilic Acid)/Canada

4-Aminobenzenesulfonic Acid (Sulfanilic Acid) from Canada

Sulfanilic acid is an aromatic monoamine derivative featuring an amino group and a sulfonic acid group on a benzene ring, classified under HTS 2921.42.90.00 as an aniline derivative and its salt. It is primarily used in the synthesis of dyes, pharmaceuticals, and optical brighteners.

Duty Rate — Canada → United States

6.5%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Verify purity certificate (typically 99%+) and CAS number 121-57-3 for customs classification as chemically defined compound

• Include Safety Data Sheet (SDS) showing it's not put up for retail sale to avoid Chapter 32 reclassification

4-Aminobenzenesulfonic Acid (Sulfanilic Acid) from Canada — Import Duty Rate | HTS 2921.42.90.00