Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2933.19.18.00Tariff line
Classification path
Heterocyclic compounds with nitrogen hetero-atom(s) only
2933
Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure
Other
Aromatic or modified aromatic
2-Chloro-5-sulfophenylmethylpyrazolone; 2,5-Dichloro-4-(3-methyl-5-oxo-2- pyrazolin-1-yl) benzenesulfonic acid; Phenyl carbethoxypyrazolone;m-Sulfaminopyrazolone (m-Sulfamido- phenyl methyl pyrazolone); and 1-(p-Sulfophenyl)-3-methyl pyrazolone
2933.19.18.00
Rates of duty
General rate (Column 1)Free
Special—
Column 215.4¢/kg + 52%
Unitkg
Printed page 1544
Measure flags
for origin CN, entry date 2026-10-26 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 2933.19.18 is on L3
- PGAEPA EP7
Confirmed total 37.5% · max 37.5%Full duty breakdown →