Paraldehyde Stabilized USP from Canada
Paraldehyde is trimeric acetaldehyde forming six-membered oxygen heterocyclic ring, used as hypnotic pharmaceutical under USP standards. Stabilized with sulfuric acid traces per Chapter note 2(f), classified 2932.99.90.90. Excluded from aldehyde heading 2912 by cyclic polymer note 5.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6096.3%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
• DEA import permit required for hypnotic substance regardless of quantity
• Acid stabilizer <0.01% prevents 2811 inorganic acid classification
• Light-resistant amber glass mandatory per USP monograph