Thiourea Dioxide Pesticide Synergist from Canada
Thiourea dioxide serves as a pesticide synergist enhancing insecticidal activity of pyrethroids by inhibiting detoxification enzymes. Classified under HTS 2930.90.30.00 as a thiuram-related pesticide adjuvant. Used in combination formulations for crop protection.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Synergist classification requires co-formulation data with primary insecticide
• Oxidative stability testing mandatory for powder formulations
• List on EPA Inert Ingredients List for pesticide use exemption