Tilidine Mesylate from China
Tilidine mesylate, the methanesulfonate salt of tilidine, is imported as a stable form for API production under HTS 2922.44.00.00. As an INN salt of an oxygen-function amino-acid, it aligns with Chapter 29 notes excluding finished products. Primarily for European-market painkillers.
Duty Rate — China → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Validate mesylate counterion ratio via HPLC in import docs
• Register as narcotic chemical with state authorities
• Pitfall: Delays from missing INN confirmation letters