1-Phenyl-3-methyl-5-pyrazolone from China
1-Phenyl-3-methyl-5-pyrazolone is a pyrazolone derivative with unfused pyrazole ring structure, keto form at position 5, classified under HTS 2933.19.90.00. Used in dye synthesis, pharmaceutical intermediates, and as analytical reagent for metal detection.
Duty Rate — China → United States
31.5%
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Specify dye intermediate vs. analytical reagent grade on invoice to guide classification
• Light-sensitive - recommend amber packaging and temperature control <30°C during shipping