Chlorpheniramine Maleate from Japan
Chlorpheniramine maleate is an alkylamine antihistamine with modified aromatic structure used for allergies and sometimes nausea. Imported under HTS 2933.59.21.00 as it qualifies among aromatic antihistamines per subheading scope. Chapter notes allow salt classification with acid/base.
Duty Rate — Japan → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Maleate salt declared per note C(2)—base last in order; provide chiral purity data
• Common error: packaging implying retail (Chapter 32 exclusion)
• Temperature-controlled shipping required