HFO-1336mzz (Z) Heat Transfer Fluid from Germany
(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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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