HFO-1336mzz (Z) Heat Transfer Fluid from Mexico
(Z)-1,1,1,4,4,4-Hexafluoro-2-butene (HFO-1336mzz) is a high-performance heat transfer fluid for immersion cooling systems. This specific unsaturated fluorinated derivative is enumerated in HTS 2903.51.1000. Used in electronics cooling and organic Rankine cycle systems.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Include flammability test data as HFO-1336mzz has specific flash point characteristics
• Certify dielectric properties for electronics cooling applications
• DOT classification typically UN1950 Class 2.2 non-flammable gas