Methoxsalen (8-Methoxypsoralen) from Canada
Methoxsalen, a furocoumarin derivative related to guaiacol structures, is used in PUVA therapy for psoriasis and classifies under HTS 2922.50.19.00 as an aromatic oxygen-function compound with drug application. Its phenolic methoxy group aligns with guaiacol derivatives.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit IND/NDA references for controlled drug substance status
• Use light-protected packaging; validate photostability in import dossier
• Comply with DEA scheduling if impure lots exceed thresholds