1-(o-Ethylphenyl)-3-methyl-2-pyrazolin-5-one from Mexico
Ethylphenyl substituted pyrazolone listed under HTS 2933.19.08.00. Unfused pyrazole ring with aromatic modification fits Chapter 29 heterocyclic criteria. Employed in dye chemistry and polymer additives.
Duty Rate — Mexico → United States
15.8%
Rate breakdown
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
• Ethyl group increases flammability; flash point certification required
• Ortho substitution confirmed via X-ray crystallography in CoA
• Polymer additive use may trigger additional TSCA reporting