Rizatriptan Benzoate API from Japan
Rizatriptan benzoate is the active ingredient in Maxalt for migraine treatment, featuring a pyrazole ring in its structure. Classified under HTS 2933.19.4500 as a drug containing unfused pyrazole ring per Chapter 29 notes. Used primarily as a serotonin receptor agonist in pharmaceutical manufacturing.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Submit FDA IND/NDA references and stability data; ensure benzoate salt form matches US pharmacopeia specs
• Label shipments clearly as 'API - Not for Direct Human Use' to avoid Chapter 30 finished product classification
• Verify chiral purity documentation as pyrazole derivatives often require specific stereoisomer certificates