5-Imino-3-methyl-1-phenylpyrazole from Mexico
This imino-substituted aromatic pyrazole is specifically enumerated in HTS 2933.19.08.00. Features unfused pyrazole ring with nitrogen hetero-atoms only, per heading requirements. Used in pharmaceutical research and as dye intermediate.
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
• Research chemicals require import permits if DEA scheduled precursors
• Verify tautomer form doesn't alter classification from listed imino structure
• Lab quantities often need additional FDA/DHS documentation