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Tariff referenceChapter 99 › 9902.08.28

HTS 9902.08.28 — Trisodium 5-oxo-1-(4-sulfonatophenyl)-4-[(E)-(4- sulfonatophenyl)diazenyl]-2,5-dihydro-1H-pyrazole-3- carboxylate (Acid Yellow 23) (CAS No. 1934-21-0) (provided for in subheading 3204.12.50)

The current US import duty for Trisodium 5-oxo-1-(4-sulfonatophenyl)-4-[(E)-(4- sulfonatophenyl)diazenyl]-2,5-dihydro-1H-pyrazole-3- carboxylate (Acid Yellow 23) (CAS No. 1934-21-0) (provided for in subheading 3204.12.50) (HTS 9902.08.28) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.

Trisodium 5-oxo-1-(4-sulfonatophenyl)-4-[(E)-(4- sulfonatophenyl)diazenyl]-2,5-dihydro-1H-pyrazole-3- carboxylate (Acid Yellow 23) (CAS No. 1934-21-0) (provided for in subheading 3204.12.50)

Current US duty rate

Column 1 (General / MFN)Free
Special (FTA programs)No change
Column 2 (other)No change

No Chapter 99 (Section 301/232/122) cross-reference on this line; origin-specific surcharges may still apply — check the calculator.

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Programmatic access: the full duty stack (base + surcharges + MPF/HMF for a given origin & value) is at /duty?code=9902.08.28&origin=&value=. Current as of USITC 2026HTSRev13 (synced 2026-07-29).