Irgafos 126 Stabilizer (4,4'-Diphenylbisphosphonous Acid Derivative) from Mexico
Commercial-grade Irgafos 126, chemically 4,4'-diphenylbisphosphonous acid di(2',2",4',4"-di-tert-butyl)phenyl ester, used as a phosphite antioxidant in polypropylene and polyethylene resins. Falls under HTS 2931.90.10.00 as the specifically named aromatic organo-inorganic compound with phosphorus-carbon bonds.
Duty Rate — Mexico → United States
16.5%
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
• Submit commercial invoices specifying CAS number and matching the exact chemical name to prevent customs disputes over trade names
• Ensure packaging is industrial drums (>25kg) not retail; consumer packaging may trigger Chapter 38 reclassification