4-Methoxyphenol (Methylcatechol) from Mexico
4-Methoxyphenol, also known as methylcatechol, is an ether-phenol used as a polymerization inhibitor in acrylic resins and UV stabilizers. This chemically defined compound matches the ether-phenol criteria of heading 2909. It is typically imported as a white crystalline powder with anti-caking agents for handling.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6094.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Include NMR or GC-MS spectra verifying ether-phenol structure to distinguish from phenolic alcohols in heading 2907
• Label packages with stabilizer composition per Chapter Note 6(f); undisclosed additives may cause classification to mixtures in 3824