Suberic Acid Monomethyl Ester from Mexico
Suberic acid monomethyl ester (HOOC(CH2)6CO2CH3), half-ester derivative used in polymer synthesis. Classifies HTS 2917.19.70 following parent suberic acid per Chapter 29 ester classification rules. Single ester group maintains acid-function classification.
Duty Rate — Mexico → United States
14%
Rate breakdown
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 acid/ester equivalent weight analysis confirming mono-esterification
• Include HPLC chromatogram showing single peak purity >98%
• Declare residual solvent levels per ICH Q3C guidelines