Pronamide Reference Standard 99%+ from China
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 — China → United States
125%
Rate breakdown
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)
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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