Pharmaceutical Lidocaine HCL Monohydrate from China
Lidocaine hydrochloride monohydrate USP/EP grade, containing one water molecule per API unit, used in sustained-release formulations. Specific HTS 2924.29.57.00 classification for this aromatic amide salt per Chapter 29 note on organic salts. White crystalline powder soluble in water for aqueous injections.
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
• Document water content (4.7-5.5%) via Karl Fischer titration to confirm monohydrate form vs anhydrous
• Provide polymorphic form characterization (DSC/XRD) if patent-protected to avoid infringement issues
• Maintain humidity-controlled packaging (<40% RH) during ocean freight to prevent hydrate conversion