Difenzoquat Methyl Sulfate Technical Grade from Mexico
Pure 1,2-dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate, a quaternary ammonium salt used as the active ingredient in herbicides for wild oat control in cereals. This chemically defined heterocyclic compound with a pyrazole ring falls under HTS 2933.19.15.00 as an aromatic pyrazolium compound. It's imported as technical material for formulation into agricultural pesticides.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Obtain EPA registration and provide pesticide import documentation including product label and safety data sheets
• Ensure chemical purity certification meets 95% minimum for technical grade to avoid reclassification as mixture
• Declare exact CAS number (43222-48-0) and pyrazole content on commercial invoice to prevent customs disputes