2918.29.06.00/Irganox 259 Antioxidant/Mexico

Irganox 259 Antioxidant from Mexico

Irganox 259 is the commercial name for 1,6-Hexanediol bis(3,5-dibutyl-4-hydroxyphenyl)propionate, a high-performance hindered phenolic antioxidant used to prevent oxidative degradation in polymers. It falls under HTS 2918.29.06.00 as a specific carboxylic acid with phenol function and additional oxygen functionality, classified by its precise chemical structure in Chapter 29 for separate chemically defined organic compounds.

Duty Rate — Mexico → United States

15.8%

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

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Import Tips

• Provide detailed chemical analysis certificates (COA) confirming the exact composition matches the HTS description to avoid reclassification

• Include Safety Data Sheets (SDS) and stabilizer declarations as per Chapter 29 note (f) for preservatives added during transport

• Verify purity levels (>98% typical for Irganox 259) to prevent misclassification as mixtures under different headings