Butanal with 0.1% Hydroquinone Stabilizer from Mexico
Normal butanal stabilized with 0.1% hydroquinone to prevent polymerization during storage and transport. Remains classified as pure butanal under HTS 2912.19.25.00 since stabilizer is necessary for preservation per Chapter 29 note (f). Used in flavor/fragrance synthesis.
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 as <1% and solely for preservation; excess renders it a mixture under 3824.99
• Include polymerization inhibitor specification sheet matching industry standards for flavor chemical imports
• Segregate from oxidizing agents in shipping manifests to prevent reaction per IMDG Code