Methylmercuric Chloride from Mexico
Methylmercuric chloride is a highly toxic organomercury compound used in research on environmental toxicology. Covered under HTS 2852.90.90.00 for chemically defined mercury organics.
Duty Rate — Mexico → United States
13%
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
• Institutional Biosafety Committee approval often required for labs
• UN 2026; double-bag with absorbents
• Trace quantities may qualify for research exemptions but document carefully