Methotrimeprazine (Levomepromazine) from China
Methotrimeprazine, or levomepromazine, is a phenothiazine with strong sedative and analgesic effects used in palliative care. Its hydrogenated phenothiazine ring-system (allowed per heading) fits HTS 2934.30.5000.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% 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
• Optical purity certificates required for chiral centers in phenothiazine derivatives
• Verify no hormone activity per heading 2937 note to avoid chapter shift
• Customs often requires end-use statement distinguishing pharmaceutical vs research chemical