2922.21.40.00/Schaeffer's Salt (2-Naphthylamine-6-sulfonic Acid)/Japan

Schaeffer's Salt (2-Naphthylamine-6-sulfonic Acid) from Japan

Schaeffer's salt is a sodium salt of 2-naphthylamine-6-sulfonic acid, a key aminohydroxynaphthalenesulfonic acid derivative used primarily as an intermediate in azo dye synthesis. It falls under HTS 2922.21.4000 as a product described in additional U.S. note 3 to section VI, which covers specific organic compounds subject to quota restrictions for dye production. The compound features both amino and sulfonic acid oxygen functions on a naphthalene ring.

Duty Rate — Japan → United States

16.5%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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Import Tips

• Verify inclusion in additional U.S. note 3 to section VI and obtain necessary quota certificates from U.S

• Customs prior to import

• Provide detailed chemical analysis and CAS number (118-01-4) documentation to confirm classification as an aminohydroxynaphthalenesulfonic acid salt

• Avoid common pitfalls by ensuring purity levels meet chapter 29 requirements for chemically defined organic compounds, preventing reclassification

Schaeffer's Salt (2-Naphthylamine-6-sulfonic Acid) from Japan — Import Duty Rate | HTS 2922.21.40.00