Phthalimide from Canada
Phthalimide is an aromatic cyclic imide derived from phthalic anhydride, used primarily as an intermediate in organic synthesis for pharmaceuticals and agrochemicals. It falls under HTS 2925.19.42.00 as an aromatic imide compound other than saccharin. This chemically defined organic compound conforms to Chapter 29 note (a) for separate organic compounds.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%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
• Verify purity certificate (≥98%) as impurities may affect classification; ensure SDS includes CAS 85-41-6; watch for reclassification if containing >1% phthalic acid