WCO classification path

  1. National9902.02.97Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-sulfonate (CAS No. 71501-16-1) (provided in subheading 2917.39.04)

9902.02.97

What is the United States import tariff for HS 9902.02.97 (Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-s)?

Quick answer: United States MFN rate for HS 9902.02.97 is Free.

"Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-sulfonate (CAS No. 71501-16-1) (provided in subheading 2917.39.04)"

HS code 9902.02.97 () under the United States tariff schedule classifies "Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-sulfonate (CAS No. 71501-16-1) (provided in subheading 2917.39.04)". United States customs apply MFN rate of Free, Column 2 rate No change.

Tariff Schedule

ClassificationRate
最惠国税率 (MFN)
MFN rate
Free
第二栏税率
Column 2 rate
No change

⚠️ U.S. additional tariffs (on top of base rate)

  • +10% Section 122 temporary import surcharge (Feb 24 – Jul 24, 2026, all origins)

IEEPA tariffs (fentanyl/reciprocal) were struck down by the U.S. Supreme Court and ceased in Feb 2026. Verified Jun 2026.

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9902.02.97 · Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-sulfonate ( · United States · Treayo