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CAS 80-43-3

CAS 80-43-3 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 80-43-3
CAS 80-43-3PubChem CID 6641

Dicumyl peroxide

IUPAC name
2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene
Molecular formula
C18H22O2
Molecular weight
270.4 g/mol
Exact mass
270.161979940 Da
XLogP3
4.3
Topological polar surface area
18.5 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Cumene peroxideCumyl peroxidedicumylperoxideDi-CupPerkadox BPerkadox BCPercumyl DPerkadox SB
16 more reported names
Dicumenyl peroxideLupercoLuperoxPercumyl D 40Kayacumyl DLuperox 500Luperox 500RLuperox 500TDicumene hydroperoxideDiisopropylbenzene peroxideDiCup 40KEPeroxide, bis(1-methyl-1-phenylethyl)Varox dcp-RVarox dcp-TActive dicumyl peroxideDi-cup 40C
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 80-43-3

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How CAS 80-43-3 is used on this site

CAS 80-43-3 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 80-43-3 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.