Dichlorodifluoromethane CFC-12 Lab Grade from Mexico
Laboratory-grade dichlorodifluoromethane (CFC-12) at 99.99% purity for analytical and research applications, specifically classified under HTS 2903.77.0050 as a perfluorinated/perchlorinated acyclic hydrocarbon derivative. Used as calibration standard in gas chromatography for environmental monitoring. Pure form without solvents meets chapter 29(a) criteria.
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
• Provide NIST-traceable certificates of analysis for research import exemptions
• Small quantities (<1kg) may qualify for simplified documentation under lab use
• Segregate from production imports to avoid HCFC quota restrictions