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VAQORACHEMICALS

Dicumyl peroxide, 98%

Synonyms: Bis(1-methyl-1-phenylethyl) peroxide · Bis(a,a-dimethylbenzyl) peroxide · Cumene peroxide · Cumyl peroxide

CAS No.80-43-3
FormulaC18H22O2
Mol. weight270.40
Catalogue No.VQ-019095
Purity99%
HSN2909

Dicumyl peroxide (CAS 80-43-3) – polymer additive, Synthesis grade, 99%. C18H22O2, MW 270.4. From Vaqora Chemicals, with COA and worldwide delivery.

Pack sizesPrice on quotation · bulk available
250 g
1 kg
5 kg
25 kg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Dicumyl peroxide, 98%

Listed under CAS 80-43-3, Dicumyl peroxide is a polymer additive available from Vaqora Chemicals (Synthesis grade) with a typical assay of 99%. The compound has the formula C18H22O2, corresponding to a molecular weight of 270.4 g/mol. The IUPAC name is 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene. Common synonyms include Bis(1-methyl-1-phenylethyl) peroxide and Bis(a,a-dimethylbenzyl) peroxide.

The material typically appears as white to pale yellow powder to crystals or flakes. Key physical data: a melting point of 39-41 °C and a density of 1.56 g/mL at 25 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span polymerisation initiation, plasticising and modification and plastics compounding. Typical end-use sectors are polymers and plastics.

Vaqora Chemicals supplies Dicumyl peroxide in 250 g, 1 kg, 5 kg and 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

  • Polymerisation initiation
  • Plasticising & modification
  • Plastics compounding

Industries

Specifications & identifiers

Chemical identifiers
Product nameDicumyl peroxide, 98%
Catalogue No.VQ-019095
CAS Number80-43-3
IUPAC name2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene
Molecular formulaC18H22O2
Molecular weight270.4 g/mol
Exact mass270.162
GradeSynthesis
Purity / assay99%
HSN code2909
InChIKeyXMNIXWIUMCBBBL-UHFFFAOYSA-N
SMILESCC(C)(C1=CC=CC=C1)OOC(C)(C)C2=CC=CC=C2
PubChem CID6641
Physical properties
Physical formFlakes
AppearanceWhite to pale yellow powder to crystals or flakes
Melting point39-41 °C
Density1.56 g/mL at 25 °C
LogP (XLogP3)4.3
H-bond donors / acceptors0 / 2
TPSA18.5 Ų
UN numberUN 3110
SynonymsBis(1-methyl-1-phenylethyl) peroxide, Bis(a,a-dimethylbenzyl) peroxide, Cumene peroxide, Cumyl peroxide, dicumylperoxide, Di-Cup, Perkadox B, Perkadox BC, Percumyl D, Perkadox SB, Dicumenyl peroxide, Percumyl D 40

Safety & hazard information (GHS)

GHS02 Flammable
Flammable
GHS07 Harmful / irritant
Harmful / irritant
GHS08 Health hazard
Health hazard
GHS09 Environmental hazard
Environmental hazard

Signal word: Danger

Hazard statements

  • H242Heating may cause a fire
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H411Toxic to aquatic life with long lasting effects

Precautionary statements: P203, P210, P234, P235, P240, P264, P264 + P265, P273, P280, P302 + P352, P305 + P351 + P338, P318, P321, P332 + P317, P337 + P317, P362 + P364, P370 + P378, P391, P403, P405, P410, P411, P420, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Frequently asked questions

What is the CAS number of Dicumyl peroxide, 98%?

The CAS Registry Number of Dicumyl peroxide, 98% is 80-43-3. It is also known as Bis(1-methyl-1-phenylethyl) peroxide, Bis(a,a-dimethylbenzyl) peroxide, Cumene peroxide.

What is the molecular formula and molecular weight of Dicumyl peroxide, 98%?

Dicumyl peroxide, 98% has the molecular formula C18H22O2 and a molecular weight of 270.4 g/mol. Its IUPAC name is 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene.

Which grade and pack sizes of Dicumyl peroxide, 98% can I order?

We supply Dicumyl peroxide, 98% in Synthesis (99%) grade, in 250 g, 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Dicumyl peroxide, 98%?

Yes. Every lot of Dicumyl peroxide, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Dicumyl peroxide, 98% be shipped internationally?

Yes. Dicumyl peroxide, 98% is classified as hazardous (UN 3110), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

Enquire about Dicumyl peroxide, 98%

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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