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GREENVEIL

  • industrial

(2E)-1,1,1,4,4,4-Hexafluoro-2-butene

CAS 66711-86-2

(2E)-1,1,1,4,4,4-Hexafluoro-2-butene chemical structure

Concern score

Not assessed — no hazard data yet.

(2E)-1,1,1,4,4,4-Hexafluoro-2-butene in plain language

What it is

Also known as 1,1,1,4,4,4-Hexafluorobut-2-ene · (E)-1,1,1,4,4,4-HEXAFLUOROBUT-2-ENE · (e)-hfo 1336 · 2-BUTENE, 1,1,1,4,4,4-HEXAFLUORO-, (e)- · TRANS-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE · (2E)-1,1,1,4,4,4-Hexafluorobut-2-ene

Show all 13 names

(E)-HFO 1336mzz · (e)-1,1,1,4,4,4-hexafluoro-2-butene · 2,2,2-trifluoroethyl · 2-Butene, 1,1,1,4,4,4-hexafluoro- · 2-Butene, 1,1,1,4,4,4-hexafluoro-, (2E)- · HFO-1336mzz(E) · UNII-4KQ73F2UQP

What it does

Used in consumer products as a foaming agent.

  • Foaming agent
Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. (2E)-1,1,1,4,4,4-Hexafluoro-2-butene appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including Industrial products. EPA CPDat classifies this chemical for functional uses including Foamant.
    • EPA CPDat observed this chemical in 2 composition records across product categories including Industrial products. EPA CPDat classifies this chemical for functional uses including Foamant.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

No graded research studies for (2E)-1,1,1,4,4,4-Hexafluoro-2-butene yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated 2022-09-19

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed (2E)-1,1,1,4,4,4-Hexafluoro-2-butene in a product composition. These are source records, not Greenveil catalog products.

Source records

2

Named organisations

1

Industrial products

Typical roles

Foaming agent
See products using (2E)-1,1,1,4,4,4-Hexafluoro-2-butene →