Pyridine Bases Fraction from Mexico
Pyridine bases fraction from coal tar contains pyridine, picolines, and lutidines used in agrochemicals and solvents. Classified HTS 2707.99.90.90 for coal tar aromatic products, though borderline heterocyclic. Aromatic constituents still dominate.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Analyze for basic nitrogen content; declare as corrosive if applicable; distinguish from synthetic pyridines