Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

SML2147

Sigma-Aldrich

S-Equol

≥97% (HPLC)

Synonym(s):

(3S)-3,4-Dihydro-3-(4-hydroxyphenyl)-2H-1-benzopyran-7-ol, (S)-(–)-4′,7-isoflavandiol, (S)-Equol, Equol

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

About This Item

Empirical Formula (Hill Notation):
C15H14O3
CAS Number:
531-95-3
Molecular Weight:
242.27
EC Number:
208-522-2
MDL number:
MFCD00200962
UNSPSC Code:
51111800
NACRES:
NA.77

Assay

≥97% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

−20°C

SMILES string

OC1=CC=C([C@H]2COC3=CC(O)=CC=C3C2)C=C1

InChI

1S/C15H14O3/c16-13-4-1-10(2-5-13)12-7-11-3-6-14(17)8-15(11)18-9-12/h1-6,8,12,16-17H,7,9H2/t12-/m1/s1

InChI key

ADFCQWZHKCXPAJ-GFCCVEGCSA-N

Application

S-Equol has been used:

  • as an estrogen receptor β (ERβ) agonist to study its effects on adipogenesis in mouse fibroblast cells
  • as a standard to study the effect of high dietary fats on S-equol metabolism and prostate carcinogenesis in the transgenic adenocarcinoma of mouse prostate (TRAMP) model
  • to study its mode of action on ecdysteroidogenic glutathione S-transferase Noppera-bo in Aedes aegypti

Biochem/physiol Actions

(S)-Equol is an estrogen receptor beta (ERβ) agonist, formed in some people by intestinal bacteria from the soy phytoestrogen daidzein. (S)-Equol has approximately 13-fold higher affinity for human ERβ over ERα and an EC50 value of 65nM for ERβ compared to an EC50 value of 85nM for ERα. It has been shown to have anti-inflammatory and neuroprotective activty.
S-Equol is an isoflavandiol derived from daidzein by bacterial flora in the intestines. It exhibits anti-cancer activity by the activation of forkhead box O3 (FOXO3a) via an Akt-specific pathway and inhibitory effects on mouse double minute 2 homolog (MDM2) expression.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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

Kazue Inaba et al.
BMC biology, 20(1), 43-43 (2022-02-18)
Mosquito control is a crucial global issue for protecting the human community from mosquito-borne diseases. There is an urgent need for the development of selective and safe reagents for mosquito control. Flavonoids, a group of chemical substances with variable phenolic
Zongliang Lu et al.
Current cancer drug targets, 16(5), 455-465 (2015-12-08)
Forkhead box O3 (FOXO3a) is a transcription factor with tumor suppressor functions that plays an important role in prostate cancer. Daidzein, one of the soy isoflavones present in soy-based foods, has been shown to exert anti-tumor effects in vitro and
Yufei Liu et al.
Nutrition & metabolism, 16, 24-24 (2019-04-24)
Consumption of diet high in soy products is suggested to contribute to lower prostate cancer incidence in Asian men. But little has been known about the influences of dietary patterns on gut microbiota and microbiota-mediated isoflavone metabolism. Here, we determined
A short S-equol exposure has a long-term inhibitory effect on adipogenesis in mouse 3T3-L1 cells
Mandujano L G, et al.
SN Applied Sciences, 11(20), 9657-9657 (2021)

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