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CAS 480-19-3

CAS 480-19-3 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 480-19-3
CAS 480-19-3PubChem CID 5281654

Isorhamnetin

Isorhamnetin is a monomethoxyflavone that is quercetin in which the hydroxy group at position 3' is replaced by a methoxy group. It has a role as a metabolite, an anticoagulant and an EC 1.14.18.1 (tyrosinase) inhibitor. It is a monomethoxyflavone, a tetrahydroxyflavone and a 7-hydroxyflavonol. It is functionally related to a quercetin. It is a conjugate acid of an isorhamnetin(1-). — ChEBI

IUPAC name
3,5,7-trihydroxy-2-(4-hydroxy-3-methoxyphenyl)chromen-4-one
Molecular formula
C16H12O7
Molecular weight
316.26 g/mol
Exact mass
316.05830272 Da
XLogP3
1.9
Topological polar surface area
116.0 Ų
Hydrogen-bond donors
4
Hydrogen-bond acceptors
7
Covalent units
1
Defined stereocentres
0

Also known as

3-MethylquercetinIsorhamnetolQuercetin 3'-methyl ether3'-Methoxyquercetin3'-O-Methylquercetin3'-Methoxy-3,4',5,7-tetrahydroxyflavoneisorhamnetineiso-rhamnetin
16 more reported names
C.I. 756803,4',5,7-Tetrahydroxy-3'-methoxyflavone07X3IB4R4Z3,5,7,4'-Tetrahydroxy-3'-methoxyflavoneFLAVONE, 3,4',5,7-TETRAHYDROXY-3'-METHOXY-4H-1-Benzopyran-4-one, 3,5,7-trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,5,7-Trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4-benzopyroneCHEBI:60523,4',5,7-tetrahydroxy-3'-methoxy-flavone3-methyl-quercetinRefChem:5925207-545-53,6,7-trihydroxy-2-(4-hydroxy-3-methoxy-phenyl)chromone3,5,7-Trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4H-chromen-4-one3'-O-Methyl Quercetin3,5,7-Trihydroxy-2-(4-hydroxy-3-metoxyphenyl)benzopyran-4-one
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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 480-19-3

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No records found for this CAS number.

How CAS 480-19-3 is used on this site

CAS 480-19-3 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 480-19-3 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.