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CAS 528-58-5

CAS 528-58-5 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 528-58-5
CAS 528-58-5PubChem CID 68247

Cyanidin Chloride

IUPAC name
2-(3,4-dihydroxyphenyl)chromenylium-3,5,7-triol chloride
Molecular formula
C15H11ClO6
Molecular weight
322.69 g/mol
Exact mass
322.0244158 Da
Topological polar surface area
102.0 Ų
Hydrogen-bond donors
5
Hydrogen-bond acceptors
6
Covalent units
2
Defined stereocentres
0

Also known as

Cyanidol chlorideIdB-10273,3',4',5,7-Pentahydroxyflavylium chloride1-Benzopyrylium, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-, chloride2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-1-benzopyrylium chlorideNSC-4072913,3',4',5,7-Pentahydroxy-2-phenylbenzopyrylium chloride2-(3,4-dihydroxyphenyl)chromenylium-3,5,7-triol;chloride
16 more reported names
2G4283G96UFlavylium, 3,3',4',5,7-pentahydroxy-, chloride1-benzopyrylium, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-, chloride (1:1)RefChem:33986208-438-62-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxychromenylium chlorideIdb 1027GastrotelosCyanidin (Chloride)Cyanidin-ChlorideAC-34419CyanidinChloride3,3',4,5,7-Pentahydroxyflavylium chloride3,3',4',5,7-Pentahydroxyflavylium chloride; Cyanidol chlorideEINECS 208-438-6NSC 407291
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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 528-58-5

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No records found for this CAS number.

How CAS 528-58-5 is used on this site

CAS 528-58-5 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares 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 528-58-5 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.