Methadone Mesylate from Canada
Methadone mesylate is a methanesulfonic acid salt of methadone, used in liquid formulations for pain relief and substitution therapy. HTS 2922.31.00.00 applies via chapter note (C)(1) for inorganic/organic salts classified with the base organic compound. Ensures precedence for oxygen-function amino-ketones.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Validate salt stoichiometry in COA; adhere to USP monographs; common issue: temperature-controlled shipping failures for hygroscopic salts