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HFO-1336mzz (Z) Heat Transfer Fluid

(Z)-1,1,1,4,4,4-Hexafluoro-2-butene (HFO-1336mzz) as a high-performance heat transfer fluid for immersion cooling systems. This is pure (Z)-HFO-1336mzz, a named unsaturated fluorinated derivative under tariff item 2903.51.00.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2903.79.00Same rate: Free

If the product is a blend with other fluids.

Pure named compound required for 2903.51.00.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Ensure the product is the pure (Z)-isomer

• Check Canadian regulations for heat transfer fluids

• Keep documentation of chemical identity for CBSA

Related Products under Tariff item 2903.51.00

HFO-1234yf Automotive Refrigerant Charge

HFO-1234yf automotive refrigerant charge in pre-charged cylinders for servicing and retrofitting vehicle air conditioning systems. This is pure 2,3,3,3-tetrafluoropropene, an unsaturated fluorinated derivative of acyclic hydrocarbons, and is specifically named under tariff item 2903.51.00.

HFO-1234yf Chiller Retrofit Refrigerant

HFO-1234yf refrigerant for centrifugal chiller retrofits, supplied in 100-pound dewars for commercial building cooling systems. This is pure 2,3,3,3-tetrafluoropropene, a named unsaturated fluorinated acyclic hydrocarbon under tariff item 2903.51.00.

HFO-1234yf Electronic Grade Refrigerant

Ultra-high purity HFO-1234yf (>99.99%) for precision cooling in semiconductor manufacturing, supplied in low-particulate cylinders. This is pure 2,3,3,3-tetrafluoropropene, a named unsaturated fluorinated derivative under tariff item 2903.51.00.

HFO-1234yf Mobile A/C Retrofit Kit Refrigerant

HFO-1234yf refrigerant in 4-ounce service cans included in retrofit kits for converting fleet vehicles from R-134a to low-GWP systems. This is pure 2,3,3,3-tetrafluoropropene, a named unsaturated fluorinated hydrocarbon under tariff item 2903.51.00.

HFO-1234yf Refrigerant Gas

HFO-1234yf refrigerant gas for automotive air conditioning, a low global warming potential alternative to R-134a. This is pure 2,3,3,3-tetrafluoropropene, an unsaturated fluorinated derivative of acyclic hydrocarbons, specifically named in tariff item 2903.51.00.

HFO-1234yf Transport Refrigeration Refrigerant

HFO-1234yf refrigerant for transport refrigeration in trucks and containers, replacing R-404A. This is pure 2,3,3,3-tetrafluoropropene, a named unsaturated fluorinated acyclic hydrocarbon under tariff item 2903.51.00.