Isodecyl Diphenyl Phosphite from Mexico
Isodecyl diphenyl phosphite functions as a hydrolysis stabilizer in polyurethane formulations. Classified as a phosphite ester under HTS 2920.29.00.00.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include GC-MS chromatogram showing characteristic phosphite P-O-C peaks
• PU industry end-use letters support proper classification over polymer additives
• Refractive index specification prevents substitution with phosphate esters