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Merck
CN

00550580

Kaempferol

primary reference standard

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:
304401
EC Number:
208-287-6
MDL number:
MFCD00016938
UNSPSC Code:
85151701
PubChem Substance ID:
329747094
NACRES:
NA.24

Key Documents

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grade

primary reference standard

shelf life

limited shelf life, expiry date on the label

manufacturer/tradename

HWI

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

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General description

Produced and qualified by HWI pharma services GmbH.
Exact content by quantitative NMR can be found on the certificate.

Application

Chromogenic reagent for antimony in the low ppm range and for gallium and indium in the sub-ppm range.
Reference Standard in the analysis of herbal medicinal products

Biochem/physiol Actions

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

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
HWI02099-1
HWI02099
HWI00649-2

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Avinash Kumar et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 82(3), 508-517 (2012-08-29)
A prototype formulation based on layer-by-layer (LbL) nano-matrix was developed to increase bioavailability of kaempferol with improved retention in bone marrow to achieve enhanced bone formation. The layer-by-layer nano-matrix was prepared by sequential adsorption of biocompatible polyelectrolytes over the preformed
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
J M Calderón-Montaño et al.
Mini reviews in medicinal chemistry, 11(4), 298-344 (2011-03-25)
Epidemiological studies have revealed that a diet rich in plant-derived foods has a protective effect on human health. Identifying bioactive dietary constituents is an active area of scientific investigation that may lead to new drug discovery. Kaempferol (3,5,7-trihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one) is a
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
A Gohlke et al.
Journal of dairy science, 96(4), 2303-2313 (2013-02-14)
Because of their health-promoting properties, flavonoids are used in feed supplements for ruminants, although scientific evidence for their efficacy in vivo is limited. It has been shown recently that bioavailability of quercetin is low after ruminal administration in cows because
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