Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

1592409

USP

Quercetin

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

Quercetin dihydrate, 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one dihydrate, 3,3′,4′,5,7-Pentahydroxyflavone dihydrate

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C15H10O7 · 2H2O
CAS Number:
6151-25-3
Molecular Weight:
338.27
Colour Index Number:
75670
Beilstein:
317313
UNSPSC Code:
41116107
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

quercetin

manufacturer/tradename

USP

mp

>300 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

−20°C

SMILES string

OC(C(O)=C1)=CC=C1C2=C(O)C(C3=C(O)C=C(O)C=C3O2)=O

InChI

1S/C15H10O7.2H2O/c16-7-4-10(19)12-11(5-7)22-15(14(21)13(12)20)6-1-2-8(17)9(18)3-6;;/h1-5,16-19,21H;2*1H2

InChI key

GMGIWEZSKCNYSW-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Quercetin USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.
Also, for use with USP monographs such as:
  • Cranberry Fruit Juice Dry Extract
  • Japanese Sophora Flower
  • Japanese Sophora Flower Powder
  • Japanese Sophora Flower Bud
  • Japanese Sophora Flower Dry Extract
  • Cranberry Fruit Juice Dry Extract Capsules
  • Rutin

Biochem/physiol Actions

Quercetin dihydrate is a flavonoid with anticancer activity. Quercetin is a mitochondrial ATPase and phosphodiesterase inhibitor. It Inhibits PI3-kinase activity and slightly inhibits PIP kinase activity. Quercetin has antiproliferative effects on cancer cell lines, reduces cancer cell growth via type II estrogen receptors, and arrests human leukemic T cells in late G1 phase of the cell cycle.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

related product

Product No.
Description
Pricing

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H301,H315,H319

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

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

WGK

WGK 1

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Gabriella Testa et al.
PloS one, 9(5), e96795-e96795 (2014-05-08)
Chronic inflammatory events appear to play a fundamental role in Alzheimer's disease (AD)-related neuropathological changes, and to result in neuronal dysfunction and death. The inflammatory responses observed in the AD brain include activation and proliferation of glial cells, together with
Catarina Cardoso et al.
PloS one, 9(8), e104201-e104201 (2014-08-16)
Strigolactones (SLs) trigger germination of parasitic plant seeds and hyphal branching of symbiotic arbuscular mycorrhizal (AM) fungi. There is extensive structural variation in SLs and plants usually produce blends of different SLs. The structural variation among natural SLs has been
Guozheng Huang et al.
European journal of medicinal chemistry, 81, 15-21 (2014-05-14)
Two sets of carbamates based on the natural alkaloid evodiamine were designed, synthesized and evaluated as potential butyrylcholinesterase inhibitors. Although a set of carbamates of 3-hydroxyevodiamine (10a-f) is inactive both at AChE and BChE, carbamates of 5-deoxo-3-hydroxyevodiamine (11a-f) exhibit much
Tomoaki Haraguchi et al.
Journal of agricultural and food chemistry, 62(24), 5589-5594 (2014-05-27)
This study demonstrated that 0.5% dietary rutin, ellagic acid, or curcumin markedly increased cecal succinate levels in rats fed a high-fat diet, whereas catechin, caffeic acid, and quercetin did not. Other organic acids were modestly or hardly affected by polyphenols.
Zhenghao Wu et al.
European journal of nutrition, 53(8), 1669-1683 (2014-02-27)
Maternal obesity is a risk factor for metabolic diseases in offspring. The aim of this study was to investigate whether quercetin administration during gestation and lactation could have any protective effect against the impact of maternal obesity on increased sensitivity
View All Related Papers

Protocols

Qualitative Thin Layer Chromatography Analysis Ginkgo

Qualitative Thin Layer Chromatography Analysis of Flavonoids and Quantification of Terpene Lactones in Ginkgo Biloba Extracts and Tablets

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service