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Dicumyl peroxide

CAS 80-43-3

Also registered as 10 other CAS numbers

82322-57-4 · 88161-12-0 · 169149-63-7 · 188070-59-9 · 209969-79-9 · 246180-99-4 · 478016-94-3 · 945614-06-2 · 1228307-55-8 · 2324106-99-0

Dicumyl peroxide chemical structure

Concern score

Not assessed — no hazard data yet.

Dicumyl peroxide in plain language

What it is

Also known as 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene · Cumene peroxide · Di-cup · Dicumyl-peroxide · 1,1’-(Dioxydipropane-2,2-diyl)dibenzene · Bis(1-methyl-1-phenylethyl) peroxide

Show all 28 names

Bis(2-phenyl-2-propyl) peroxide · Bis(α,α-dimethylbenzyl)peroxid · Cumyl peroxide · DiCup 40KE · Dicumene hydroperoxide · Dicumenyl peroxide · Dicumylperoxide · Diisopropylbenzene peroxide · Kayacumyl D · Luperco · Luperox · Luperox 500 · Luperox 500R · Luperox 500T · Percumyl D · Percumyl D 40 · Perkadox B · Perkadox BC · Perkadox SB · Peroxide, bis(1-methyl-1-phenylethyl) · active dicumyl peroxide · bis(α,α-dimethylbenzyl) peroxide

What it does

We don't have a plain-language description for Dicumyl peroxide yet.

Recorded functional uses: Catalyst · Chemical reaction regulator · Flame retardant

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

Regulation

No restrictions found. Dicumyl peroxide appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 28 composition records across product categories including Construction and building materials, Industrial products, Raw materials. EPA CPDat classifies this chemical for functional uses including Processing aids not otherwise specified, Chemical reaction regulator, Flame retardant.
    • EPA CPDat observed this chemical in 28 composition records across product categories including Construction and building materials, Industrial products, Raw materials. EPA CPDat classifies this chemical for functional uses including Processing aids not otherwise specified, Chemical reaction regulator, Flame retardant.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 Dicumyl peroxide 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 23 March 2010

    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 Dicumyl peroxide in a product composition. These are source records, not Greenveil catalog products.

Source records

28

Named organisations

6

Construction and building materialsIndustrial productsRaw materials

Typical roles

CatalystChemical reaction regulatorFlame retardantHardener
See products using Dicumyl peroxide →