Levorphanol Hydrochloride from Mexico
Levorphanol hydrochloride is the hydrochloride salt of levorphanol, a synthetic opioid analgesic with a quinoline/isoquinoline ring structure. Classified under HTS 2933.41.00.00 per Chapter 29 note (C)(1) for inorganic salts of organic compounds following the parent organic compound's heading. Used primarily as bulk API for injectable or oral pain relief medications.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%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
• Provide Certificate of Analysis confirming >98% purity and stereochemical identity; comply with DEA import permit for Schedule II narcotics
• Avoid bulk packaging that suggests finished dosage to prevent Chapter 30 reclassification