Research Grade Lithium PFOS (>99%) from Mexico
High-purity (>99%) lithium perfluorooctane sulfonate for laboratory research on fluorosurfactants. Strictly classified under HTS 2904.33.00.00 as the pure chemical compound, meeting Chapter 29 note (a) criteria. Not excluded by any chapter limitations.
Duty Rate — Mexico → United States
13.7%
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
• Ship in small quantities (<1kg) under research exemption to minimize regulatory hurdles
• Include university/lab end-user certificate to qualify academic import privileges
• Declare CAS 29457-72-5 and molecular formula C8F17LiO3S explicitly