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90081

3-O-Methylquercetin

≥97% (HPLC)

Synonym(s):

5,7,3′ ,4′ -Tetrahydroxy-3-methoxyflavone, Quercetin 3-O-methyl ether

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1 mg
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$323.00
5 mg
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$786.00

About This Item

Empirical Formula (Hill Notation):
C16H12O7
CAS Number:
1486-70-0
Molecular Weight:
316.26
UNSPSC Code:
12352202
NACRES:
NA.32
PubChem Substance ID:
329769845
MDL number:
MFCD00210588
Beilstein/REAXYS Number:
324509
Assay:
≥97% (HPLC)
Form:
powder

$323.00

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Quality Segment

100

assay

≥97% (HPLC)

form

powder

SMILES string

COC1=C(Oc2cc(O)cc(O)c2C1=O)c3ccc(O)c(O)c3

InChI

1S/C16H12O7/c1-22-16-14(21)13-11(20)5-8(17)6-12(13)23-15(16)7-2-3-9(18)10(19)4-7/h2-6,17-20H,1H3

InChI key

WEPBGSIAWZTEJR-UHFFFAOYSA-N

Biochem/physiol Actions

3-O-Methylquercetin significantly inhibits cyclic adenosine monophosphate- (cAMP-) and cyclic guanosine monophosphate- (cGMP-) phosphodiesterase activity. It possess anti-inflammatory, bronchodilating properties and used in treatment of asthma. It suppresses the total inflammatory cells, tumor necrosis factor-α (TNF-α) and attenuates the production of interleukins.
3-O-Methylquercetin is a metabolite in flavone and flavonol biosynthesis. It is a naturally occurring compound present in various plants, and was shown to have potent anticancer-promoting[1], antioxidant[2], antiallergy[3], and antimicrobial activity[4], and showed strong anti-viral activity inhibition of tomato ringspot virus.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

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1 of 1

This Item
Q30011673317794
3-O-Methylquercetin ≥97% (HPLC)

Sigma-Aldrich

90081

3-O-Methylquercetin

Quercitrin hydrate ≥78%

Sigma-Aldrich

Q3001

Quercitrin hydrate

Quercetin 3-O-(6″-O-malonyl)-β-D-glucoside ≥85% (HPLC)

Sigma-Aldrich

16733

Quercetin 3-O-(6″-O-malonyl)-β-D-glucoside

Isorhamnetin ≥95.0% (HPLC)

Sigma-Aldrich

17794

Isorhamnetin

form

powder

form

-

form

powder

form

-

assay

≥97% (HPLC)

assay

≥78%

assay

≥85% (HPLC)

assay

≥95.0% (HPLC)

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

pictograms

Skull and crossbones
GHS06

signalword

Danger

hcodes

H301

Hazard Classifications

Acute Tox. 3 Oral

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN2401
BCCL8030
BCCH2859
BCBW5668
BCBV1478

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Global Trade Item Number

SKUGTIN
90081-5MG04061831580266
90081-1MG04061825700250

Questions

  1. is this product also called Isorhamnetin?

    1 answer

    1. Isorhamnetin shares structural similarities with 3-O-methylquercetin. They are structural isomers, sharing similar chemical compositions but differing in the arrangement of atoms. Both compounds belong to the flavonoid family and have various dietary sources.

      For Item 90081, the structure and properties (SMILES string, InChI, InChI key) are of 3-O-methylquercetin per PubChem: https://pubchem.ncbi.nlm.nih.gov/compound/5280681.

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