2921.43.90.40/p-Toluidine-m-sulfonic Acid Sodium Salt/Japan

p-Toluidine-m-sulfonic Acid Sodium Salt from Japan

The sodium salt form of p-Toluidine-m-sulfonic acid, a water-soluble aromatic amine sulfonate under HTS 2921.43.9040 per Chapter 29 salt classification rules. Used in azo dye coupling processes and as a chemical intermediate.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Declare exact salt form and counterion (sodium) as organic salts classified with parent compound per note 3(C)

• Test for water content; solutions may require heading 29 note (d) justification for chemical purity

• Avoid retail packaging that could trigger Chapter 32 exclusion for coloring matter preparations