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