DEEP Stabilized with 0.1% Antioxidant from Mexico
Diethyl ethylphosphonate stabilized with 0.1% antioxidant for transport and storage stability, qualifying under Chapter 29 note (f) for added stabilizers. Specifically classified in HTS 2931.43.00.00 as the named organo-phosphorus compound with necessary preservation additive. Used in pesticide intermediate production.
Duty Rate — Mexico → United States
13.7%
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 necessary for preservation per Chapter 29 note (f), not exceeding 1% typically
• List all additives on commercial invoice with percentages to prevent reclassification as 3824 mixtures
• Ensure stabilizer doesn't render product suitable for specific use beyond general chemical intermediate