Propionic Anhydride from Canada
Propionic anhydride is the anhydride of propionic acid, a saturated acyclic monocarboxylic acid derivative used in acetylation reactions. HTS 2915.29.50.00 includes such anhydrides of 'other' acids.
Duty Rate — Canada → United States
12.8%
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
• UN 2503 Propionic anhydride labeling mandatory
• Moisture exclusion critical (reacts with water)
• Distinguish from acid chloride (2915.90 potential)