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Tobias Acid Sodium Salt (2-Naphthylamine-6-Sulfonic Acid precursor) from Mexico

Sodium salt of naphthol sulfonic acid used in dye chemistry, classified under HTS 2907.15.60.00 'other naphthols.' Key for naphthol AS dye series.

Duty Rate — Mexico → United States

15.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Ensure no amino substitution that would move to 2922 per chapter notes

Bulk chemical labeling required; retail packing changes classification

Verify against chapter exclusions for immunological products (3002)