Pyrene from Mexico
Pyrene is a linear tetracyclic aromatic hydrocarbon used in fluorescence spectroscopy and organic semiconductors. Classified under the residual 'other' cyclic hydrocarbons provision HTS 2902.90.90.00.
Duty Rate — Mexico → United States
10%
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
• Specify crystal form and particle size as affects end-use declaration
• Provide fluorescence emission spectrum data for research-grade verification
• Ensure packaging prevents dust formation to maintain pure compound status