Propionic Anhydride from Canada
Propionic anhydride, (CH3CH2CO)2O, is the mixed anhydride of propionic acid used in acetylation reactions and pharmaceutical intermediates. Although the heading mentions anhydrides, this falls in 'other' as not specifically provided for. Highly reactive, pungent liquid.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Classify as UN 2502, Corrosive liquid, requiring specific packaging group II containers
• Include reactivity data sheet due to violent reaction with water and strong oxidizing agents
• Prevent reclassification to 2915.90 by providing molecular formula C6H10O3 confirmation