3-Quinuclidinyl Benzilate Powder from Mexico
Pure 3-quinuclidinyl benzilate (QNB) is a synthetic heterocyclic compound containing a pyridine ring structure, classified under HTS 2933.39.61.10 as a specific product described in additional U.S. note 3 to section VI. It is a muscarinic antagonist used primarily in chemical and pharmaceutical research.
Duty Rate — Mexico → 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
• Verify DEA registration and end-user certificates due to its classification as a chemical weapon precursor; ensure chemical purity documentation meets 99%+ standards for chapter 29 eligibility; avoid retail packaging to prevent reclassification under chapter 38