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2933.99.24.00/1-(3-Sulfopropyl)-3-methylimidazolium Inner Salt/Japan

1-(3-Sulfopropyl)-3-methylimidazolium Inner Salt from Japan

A zwitterionic imidazolium compound used in photographic wetting agents and antistatic coatings for film bases. The heterocyclic nitrogen structure provides surface activity essential for processing. Falls under HTS 2933.99.24.00 as a photographic chemical.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.04.628.5%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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Import Tips

• Classify as inner salt per Chapter 29 organic salt provisions; provide zwitterion structure confirmation; ensure surfactant performance specifications

1-(3-Sulfopropyl)-3-methylimidazolium Inner Salt from Japan — Import Duty Rate | HTS 2933.99.24.00