Lidocaine Free Base Research Grade from China
High-purity (>99.5%) lidocaine base for pharmaceutical research and analytical standards. Classified under HTS 2924.29.57.00 as chemically defined aromatic cyclic amide drug meeting Chapter 29 purity criteria. Used as reference standard in HPLC method validation.
Duty Rate — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include NIST-traceable certificate of analysis with assigned purity value for research chemical exemption
• Declare quantities <1kg with end-use statement for laboratory research to avoid bulk drug scrutiny
• Segregate research-grade from GMP production shipments; different documentation and inspection requirements