Normethadone Mesylate from Japan
Normethadone mesylate is employed in pharmacological research as a methadone metabolite analog. HTS 2922.31.00.00 covers it explicitly as normethadone (INN) salt, fitting amino-ketone oxygen-function criteria and chapter scope for pure compounds.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.6215%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)
Import Tips
• Include IRB or research protocol with entry; test for heavy metals <10ppm; pitfall: stabilizer additives exceeding note (f) limits