Bis(2,4-dicumylphenyl) Pentaerythritol Diphosphite from Mexico
Bis(2,4-dicumylphenyl) pentaerythritol diphosphite (AO-626) provides hydrolysis resistance in nylon compounds. Dual phosphite functionality under HTS 2920.29.00.00.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Structure confirmation via LC-MS essential for complex molecule
• Glass transition temperature data supports polymer stabilizer claims
• Low free phenol (<100 ppm) specification prevents phenol classification