Ethyl Methyl Oxalate from Mexico
Mixed ester ethyl methyl oxalate (CH3OOC-COO-C2H5) used as specialty solvent and intermediate. Covered by HTS 2917.11.00.00 as oxalic acid ester per chapter classification rules. Bp 165-170°C colorless liquid.
Duty Rate — Mexico → United States
13.1%
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
• NMR spectrum confirms ester ratio; declare as specific mixed ester not simple mixture
• UN1993 flammable liquid; lower flash point (52°C) than symmetrical diesters
• Rare compound; provide synthesis route/method confirmation for customs verification