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2922.21.50.00/K Acid (1-Naphthylamine-8-sulfonic Acid)/Canada

K Acid (1-Naphthylamine-8-sulfonic Acid) from Canada

K Acid acts as a dye intermediate with amino and sulfonic groups on 1-naphthol structure. Meets definition of oxygen-function amino-compound under Chapter 29 notes. HTS 2922.21.5000 covers this as other aminohydroxynaphthalenesulfonic acid.

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

• Certify <0.1% heavy metals per dye industry standards

• Use 'pure' vs 'technical grade' distinction on labels

• Avoid generic 'aromatic sulfonic acid' descriptions

K Acid (1-Naphthylamine-8-sulfonic Acid) from Canada — Import Duty Rate | HTS 2922.21.50.00