Malononitrile with 0.1% Stabilizer from Canada
Malononitrile containing minimal stabilizer (0.1%) for preservation during transport, explicitly permitted under Chapter 29 note (f) and classified as HTS 2926.90.50.10. The added stabilizer does not alter its primary identity as the named dicyano compound.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.60100%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
• Document stabilizer as 'necessary for preservation' per Chapter 29(f); commercial purpose additives risk reclassification
• Label with exact composition; CBP may test to confirm malononitrile remains principal component
• Monitor import volumes; frequent small shipments may trigger scrutiny for retail intent (Chapter 38 risk)