Methyl Parathion High Purity Reference Standard from China
USP/EP grade methyl-parathion at 99%+ purity used as analytical reference standard for pesticide residue testing and quality control. Classified under HTS 2920.11.00.00 as the pure thiophosphoric ester despite laboratory use designation.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include lot-specific Certificate of Analysis with NMR, IR, and HPLC purity verification
• Declare exact quantity (typically <1kg) to qualify for laboratory reagent exemption where applicable
• Ship with secondary containment and 'Limited Quantity' hazardous label for small packages