Isobutyl Methyl Ether from Japan
Isobutyl methyl ether is a branched acyclic ether from isobutanol and methanol, employed as a specialty solvent. Classified under HTS 2909.19.18.00 as 'other' acyclic ethers of monohydric alcohols per Chapter 29 note (a). Its structure excludes classification with polyhydric derivatives.
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
• Provide refractive index and boiling point data matching specification
• Declare branched vs linear isomer clearly on customs documentation
• Ensure compatibility with stainless steel storage to prevent reactions