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CAS 90-18-6

CAS 90-18-6 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 90-18-6
CAS 90-18-6PubChem CID 5281680

Quercetagetin

Quercetagetin is a hexahydroxyflavone that is flavone substituted by hydroxy groups at positions 3, 5, 6, 7, 3' and 4' respectively. It has a role as an antioxidant, an antiviral agent and a plant metabolite. It is a hexahydroxyflavone and a member of flavonols. It is functionally related to a quercetin. — ChEBI

IUPAC name
2-(3,4-dihydroxyphenyl)-3,5,6,7-tetrahydroxychromen-4-one
Molecular formula
C15H10O8
Molecular weight
318.23 g/mol
Exact mass
318.03756727 Da
XLogP3
1.2
Topological polar surface area
148.0 Ų
Hydrogen-bond donors
6
Hydrogen-bond acceptors
8
Covalent units
1
Defined stereocentres
0

Also known as

6-Hydroxyquercetin3,3',4',5,6,7-HexahydroxyflavoneSV68G507VOCHEBI:86954H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5,6,7-tetrahydroxy-NSC-1159163,5,6,7-Tetrahydroxy-2-(3,4-dihydroxyphenyl)-4H-1-benzopyran-4-oneQuercetogetin
16 more reported names
RefChem:47609201-973-6Quercetagenin2-(3,4-Dihydroxyphenyl)-3,5,6,7-tetrahydroxy-4H-chromen-4-one3,5,6,7,3',4'-Hexahydroxyflavone2-(3,4-Dihydroxyphenyl)-3,5,6,7-tetrahydroxy-4H-1-benzopyran-4-one2-(3,4-Dihydroxyphenyl)-3,5,6,7-tetrahydroxy-4-benzopyrone3,3'4,5,6,7-hexOH-FlavoneFlavone, 3,3',4',5,6,7-hexahydroxy-2-(3,4-dihydroxyphenyl)-3,5,6,7-tetrahydroxy-chromen-4-one3,5,6,7-Tetrahydroxy-2-(3,4-Dihydroxyphenyl)-4h-Chromen-4-OneMYUUNII-SV68G507VOEINECS 201-973-6NSC 1159163v3v
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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 90-18-6

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How CAS 90-18-6 is used on this site

CAS 90-18-6 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 90-18-6 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.