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4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid from Mexico

Complex chlorosulfonic pyrazole derivative explicitly in HTS 2933.19.08.00. Features unfused pyrazole ring and aromatic substitution per Chapter 29 notes. Used in high-performance dye coupling.

Duty Rate — Mexico → United States

15.8%

Rate breakdown

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

Import Tips

Highly water-soluble; drum liners essential to prevent corrosion

Sulfonic acid requires neutralization procedures in customs documentation

Complex name demands precise CoA matching HTS nomenclature