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

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

Calculate with your customs value Verify with the Tariff Assistant

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