BZ Chemical (3-Quinuclidinyl Benzilate) Lab Grade from Mexico
Laboratory-grade BZ (military designation for 3-quinuclidinyl benzilate), a pyridine-containing heterocyclic compound explicitly listed in HTS 2933.39.61.10. Used in toxicological and pharmacological studies as a pure chemical entity.
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
• Obtain prior approval from U.S
• State Department for CWC Schedule 2.A.14 chemical; use UN 2811 proper shipping name; declare research institution affiliation on commercial invoice