2,4-Methylcarboxypyrazolic acid from Canada
Methylcarboxy pyrazolic acid listed in HTS 2933.19.08.00 as aromatic pyrazole derivative. Unfused ring structure qualifies under Chapter 29. Used in fine chemical synthesis.
Duty Rate — Canada → United States
15.8%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Carboxylic acid functionality requires pH stability data
• Low solubility demands specialized milling for import form
• Confirm not enzyme inhibitor excluding from Chapter 29