Isobutyl Methyl Ether from Mexico
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 — 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
• 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