All Photos(1)


Quercetin dihydrate

European Pharmacopoeia (EP) Reference Standard

3,3′,4′,5,7-Pentahydroxyflavone dihydrate, 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one dihydrate
Empirical Formula (Hill Notation):
C15H10O7 · 2H2O
CAS Number:
Molecular Weight:
Colour Index Number:


pharmaceutical primary standard




>300 °C (lit.)


pharmaceutical (small molecule)



storage temp.


SMILES string


InChI key


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.

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.


Unit quantity: 25 mg. Subject to change. The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.


Other Notes

Sales restrictions may apply.


Skull and crossbones

Signal Word


Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral

Storage Class Code

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



Certificate of Analysis

Certificate of Origin

Tomohiko Matsuo et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(3), E311-E320 (2015-01-08)
Most mammals have two major olfactory subsystems: the main olfactory system (MOS) and vomeronasal system (VNS). It is now widely accepted that the range of pheromones that control social behaviors are processed by both the VNS and the MOS. However
Nada Oršolić et al.
European journal of nutrition, 53(5), 1217-1227 (2013-11-26)
Reactive oxygen species play a role in a number of degenerative conditions including osteoporosis. Flavonoids as phyto-oestrogens exert physiological effects against oxidative stress diseases. We developed a retinoic acid-induced bone loss model of rats to assess whether flavonoids and alendronate
Sameha Merzoug et al.
Naunyn-Schmiedeberg's archives of pharmacology, 387(10), 921-933 (2014-06-21)
This study was designed to evaluate the effect of quercetin, a natural flavonoid, on behavioral alterations, brain oxidative stress, and immune dysregulation caused by a chemotherapeutic agent, Adriamycin (ADR; 7 mg/kg of body weight). Different subsets of male Wistar rats were
Roghieh Hajiboland et al.
Physiology and molecular biology of plants : an international journal of functional plant biology, 24(6), 1103-1115 (2018-11-15)
Effect of silicon (Si) on the response of strawberry (Fragaria × ananassa var. Parus) plants to arbuscular mycorrhizal fungus (AMF) was studied under growth chamber conditions. Plants were grown in perlite irrigated with nutrient solution without (- Si) or with (+ Si) 3 mmol L-1 Si
Beng Fye Lau et al.
PloS one, 9(7), e102509-e102509 (2014-07-24)
Previous studies on the nutritional and nutraceutical properties of Lignosus rhinocerotis focused mainly on the sclerotium; however, the supply of wild sclerotium is limited. In this investigation, the antioxidant capacity and cytotoxic effect of L. rhinocerotis cultured under different conditions

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