2-Methylpropanal Stabilized from Mexico
Stabilized isobutanal with BHT antioxidant to prevent polymerization, classified under HTS 2912.19.40.00 per Chapter 29 note (f) allowing stabilizers necessary for preservation. Used in fragrance synthesis and polymer production.
Duty Rate — Mexico → United States
15.5%
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
• Document stabilizer <0.1% and confirm it doesn't create 'specific use' suitability per chapter note (g)
• Validate stabilizer type (BHT/MEHQ) doesn't introduce aromatic functions changing classification
• Monitor autoignition temperature (210°C); temperature-controlled shipping prevents decomposition claims