Tariff referenceChapter 29 › 2933.19.18.00

HTS 2933.19.18.00 — 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

Heterocyclic compounds with nitrogen hetero-atom(s) only: › 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

Current US duty rate

Column 1 (General / MFN)Free
Special (FTA programs)
Column 2 (other)15.4¢/kg + 52%

Additional duties may apply, depending on country of origin: Section 301 (China) — List 3 — 9903.88.03 (+25%).

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Programmatic access: the full duty stack (base + surcharges + MPF/HMF for a given origin & value) is at /duty?code=2933.19.18.00&origin=&value=. Current as of USITC 2026HTSRev10 (synced 2026-06-12).

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