1-Phenyl-3-methyl-5-pyrazolone from Japan
1-Phenyl-3-methyl-5-pyrazolone is a modified aromatic pyrazole derivative used in dye and pharmaceutical synthesis. Classified under HTS 2933.19.43.00 for unfused pyrazole compounds that are aromatic or modified aromatic. The ketone functionality does not change its primary pyrazole classification.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide spectral analysis (NMR/IR) confirming pyrazole ring structure; label as 'not for medicinal use' if research grade; watch for GRI 1 misclassification as ketones (2914)