Stabilized Diethyl Phosphite with MEHQ Inhibitor from Canada
Diethyl phosphite stabilized with 100ppm monomethyl ether hydroquinone (MEHQ) prevents auto-oxidation during storage. Classified under HTS 2920.22.00.00 per Chapter 29 note 2(f) as phosphite ester with necessary preservative.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document stabilizer concentration (<0.1%) in SDS to qualify under note 2(f); higher levels risk 3824 classification
• Avoid plastic IBCs; use stainless steel or HDPE with fluorination for phosphite compatibility
• Monitor shelf life declaration; expired stabilizer versions often denied entry