Methoxsalen (8-Methoxypsoralen) from China
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 — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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