Pronamide Reference Standard 99%+ from Mexico
Analytical reference standard of pronamide (3,5-Dichloro-N-(1,1-dimethyl-2-propynyl)-benzamide) at 99%+ purity for pesticide residue analysis and quality control testing. Classified under HTS 2924.29.28.00 as the specifically named pure chemical compound. Used by laboratories and regulatory agencies for calibration and method validation.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Include certificate of analysis traceable to NIST or EPA standards confirming reference material status
• Declare small package quantities (<1kg) with laboratory end-use certification to expedite clearance
• Label containers with exact CAS number [23950-58-5] and structure to match tariff nomenclature precisely