1-(p-Sulfophenyl)-3-methyl pyrazolone from Japan
A pyrazolone derivative with a para-sulfophenyl substituent at position 1 and methyl at position 3 on the unfused pyrazole ring. Classified in HTS 2933.19.18.00 as a specifically enumerated aromatic heterocyclic compound. Widely employed as a coupler in azo dye manufacturing.
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
• Include TSCA certification for US import; use acid-resistant packaging for sulfonic group; confirm batch purity exceeds 98%