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Sigma-Aldrich

Kaempferol

≥97.0% (HPLC)

Synonym(s):

3,4′,5,7-Tetrahydroxyflavone, 3,5,7-Trihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one, Robigenin

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About This Item

Empirical Formula (Hill Notation):
C15H10O6
CAS Number:
520-18-3
Molecular Weight:
286.24
Beilstein/REAXYS Number:
304401
MDL number:
MFCD00016938
UNSPSC Code:
12352205
PubChem Substance ID:
57651711
NACRES:
NA.47

Quality Level

100

assay

≥97.0% (HPLC)

impurities

≤12% water

application(s)

metabolomics
vitamins, nutraceuticals, and natural products

SMILES string

Oc1ccc(cc1)C2=C(O)C(=O)c3c(O)cc(O)cc3O2

InChI

1S/C15H10O6/c16-8-3-1-7(2-4-8)15-14(20)13(19)12-10(18)5-9(17)6-11(12)21-15/h1-6,16-18,20H

InChI key

IYRMWMYZSQPJKC-UHFFFAOYSA-N

Gene Information

human ... CDC2(983) , CDK5(1020) , CDK6(1021) , CYP1A2(1544) , CYP2C9(1559) , GSK3A(2931)
mouse ... Hexa(15211)

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General description

Kaempferol is a polyphenolic antioxidant abundantly present in vegetables and fruits. It has a diphenylpropane structure. In many plants, it is present as a glycosidic form namely, kaempferol-3-O-glucoside.

Application

Kaempferol has been used:
  • to test its effect on osteoblast proliferation, migration, and differentiation in mouse pre-osteoblast cell line (MC3T3-E1 cells)
  • as an antioxidant and a hepatoprotective agent against zearalenone (ZEA)-induced oxidative stress and apoptosis in HEPG2 cells
  • as a neuroprotective agent against cadmium chloride (CdCl2) induced hippocampal damage and memory deficits in rats
  • as an anti-inflammatory agent, together with apigenin, for stem-cell therapy on knee osteoarthritic male rats

Chromogenic reagent for antimony in the low ppm range and for gallium and indium in the sub-ppm range.

Biochem/physiol Actions

Kaempferol is hydrophobic in nature due to its diphenylpropane group. It exerts anti-inflammatory actions along with their antioxidant properties and modulates pro-inflammatory enzyme activities. Kaempferol acts as a chemopreventive agent by exerting protective effects on cell viability. It modulates several key elements of cellular signal transduction pathways linked to apoptosis, angiogenesis, metastasis, and inflammation.
Potent inhibitor of osteoclastic bone resorption. The effect is believed to be attributable to both the antioxidant and estrogenic activities of kaempferol.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Kaempferol 3-rutinoside phyproof® Reference Substance

PHL80700

Kaempferol 3-rutinoside

Kaempferol 3-glucoside primary reference standard

04500585

Kaempferol 3-glucoside

Luteolin ≥98% (TLC), powder

Sigma-Aldrich

L9283

Luteolin

Myricetin ≥96.0%, crystalline

Sigma-Aldrich

M6760

Myricetin

Myricetin analytical standard

Supelco

72576

Myricetin

Isorhamnetin United States Pharmacopeia (USP) Reference Standard

USP

1351800

Isorhamnetin

Kaempferol protects against cadmium chloride-induced hippocampal damage and memory deficits by activation of silent information regulator 1 and inhibition of poly (ADP-Ribose) polymerase-1
El-kott A F, et al.,
The Science of the Total Environment, 138832-138832 (2020)
Kasi Pandima Devi et al.
Pharmacological research, 99, 1-10 (2015-05-20)
Inflammation is an important process of human healing response, wherein the tissues respond to injuries induced by many agents including pathogens. It is characterized by pain, redness and heat in the injured tissues. Chronic inflammation seems to be associated with
Gil Fraqueza et al.
Dalton transactions (Cambridge, England : 2003), 41(41), 12749-12758 (2012-09-13)
Recently we demonstrated that the decavanadate (V(10)) ion is a stronger Ca(2+)-ATPase inhibitor than other oxometalates, such as the isoelectronic and isostructural decaniobate ion, and the tungstate and molybdate monomer ions, and that it binds to this protein with a
Jean-Baptiste Daskiewicz et al.
Journal of medicinal chemistry, 48(8), 2790-2804 (2005-04-15)
A library of 42 natural and synthetic flavonoids has been screened for their effect on cell proliferation and apoptosis in a human colonic cell line (HT-29). Examples of different classes of flavonoids have been screened, and the effects of hydroxylation
Allen Y Chen et al.
Food chemistry, 138(4), 2099-2107 (2013-03-19)
Kaempferol is a polyphenol antioxidant found in fruits and vegetables. Many studies have described the beneficial effects of dietary kaempferol in reducing the risk of chronic diseases, especially cancer. Epidemiological studies have shown an inverse relationship between kaempferol intake and
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Dietary Antioxidants

Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.

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