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CAS 58-27-5

CAS 58-27-5 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 58-27-5
CAS 58-27-5PubChem CID 4055

Menadione

Menadione is a member of the class of 1,4-naphthoquinones that is 1,4-naphthoquinone which is substituted at position 2 by a methyl group. It is used as a nutritional supplement and for the treatment of hypoprothrombinemia. It has a role as an EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor, an antineoplastic agent, an angiogenesis inhibitor, a nutraceutical and a human urinary metabolite. It is a member of 1,4-naphthoquinones and a vitamin K. — ChEBI

IUPAC name
2-methylnaphthalene-1,4-dione
Molecular formula
C11H8O2
Molecular weight
172.18 g/mol
Exact mass
172.052429494 Da
XLogP3
2.2
Topological polar surface area
34.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Vitamin K32-Methyl-1,4-naphthoquinoneKayquinoneMenaphthoneThyloquinoneKanoneKappaxinKayklot
16 more reported names
KlottonePanosine2-Methyl-1,4-naphthalenedioneKolklot2-MethylnaphthoquinoneKareonKoaxinKipcaAquinoneKaergonaMenadionMenaphthonProkayvitAquakaySynkayKativ-G
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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 58-27-5

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No records found for this CAS number.

How CAS 58-27-5 is used on this site

CAS 58-27-5 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 58-27-5 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.