2912.19.40.00/2-Methylpropanal Stabilized/Mexico

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

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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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