2-tert-Butyl-4-methoxyphenol from Japan
2-tert-Butyl-4-methoxyphenol serves as an antioxidant in rubber and plastics, featuring ether-phenol functionality. Classified under HTS 2909.50.4500 as a product in additional U.S. note 3 to section VI due to its chemically defined structure. The bulky tert-butyl substitution provides steric hindrance for oxidative stability.
Duty Rate — Japan → United States
22%
Rate breakdown
9903.04.629.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document polymer stabilization end-use to distinguish from pharmaceutical applications
• Confirm <0.1% impurities via GC to maintain pure compound status vs mixture
• Include TSCA inventory status and PMN number if applicable for new introductions