Monomethylamine Hydrochloride from Canada
Monomethylamine hydrochloride is the salt form of methylamine, a simple acyclic monoamine, used primarily in organic synthesis for pharmaceuticals and agrochemicals. It falls under HTS 2921.11.00.00 as a salt of methylamine, explicitly covered by the heading for methylamine, di- or trimethylamine and their salts. This chemically defined compound meets Chapter 29 note (a) for separate organic compounds.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify purity certificate to confirm it's a chemically defined compound per Chapter 29 notes; ensure SDS includes CAS number 593-51-1
• Common pitfall: misclassifying as mixtures if impurities exceed trace levels