1,4-Dimethyl-6-hydroxy-3-cyanopyrid-2-one from Canada
1,4-Dimethyl-6-hydroxy-3-cyanopyrid-2-one is a substituted pyridone compound explicitly named in HTS 2933.39.20.00 for pyridine ring structures. It functions as an intermediate in pharmaceutical manufacturing, particularly for antiviral and anticancer agents.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6094.2%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Submit NMR and mass spec data verifying cyanopyridine structure and substitution pattern
• Check for dual-use chemical restrictions under export control regulations
• Ensure GHS labeling for compounds with hydroxy and cyano functional groups