Tris(2,4-di-tert-butylphenyl) Phosphite from Canada
Tris(2,4-di-tert-butylphenyl) phosphite (AO-168) is a hindered phosphite for polyethylene stabilization. Sterically protected phosphite ester under HTS 2920.29.00.00.
Duty Rate — Canada → United States
13.7%
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
• CAS 31570-04-4 verification prevents generic phosphite classification
• Dust hazard documentation for fine powder handling
• High purity (>99%) specification maintains chemical compound status