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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%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

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