Neoheptanoic Acid from Mexico
Neoheptanoic acid is a highly branched saturated acyclic C7 monocarboxylic acid used in specialty esters and synthetic lubricants. Falls under HTS 2915.90.18.90 as other saturated acyclic monocarboxylic acids per Chapter 29.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6095.8%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
• Verify synthetic origin vs natural fatty acid mixtures
• Isomer distribution analysis prevents mixture classification