Price and Availability of (-)-(S)-Equol | AUS 131 | SE 5OH:
Size
Price
Stock
50 mg
USD 186
In Stock
100 mg
USD 318
In Stock
250 mg
USD 528
In Stock
500 mg
USD 766
In Stock
1 g
USD 1268
In Stock
Contact us for competitive discounts on bulk quantities
Biological Activity:
Equol is a non-steroidal estrogen produced from the metabolism of the isoflavonoid phytoestrogen daidzen by human intestinal microflora. The estrogen receptor (ER) agonist activity of the naturally occurring (S)-enantiomer (EC50 = 85 and 65 nM for human ERα and ERβ, respectively) is similar to that of genistein but exceeds that of daidzein. (S)-Equol preferentially binds ERβ (Ki = 0.73 nM) and demonstrates approximately 9-fold lower affinity for ERα (Ki = 6.41 nM). (S)-equol is also a potent antagonist of dihydrotestosterone, which has important implications for prostate cancer and other androgen-mediated pathologies.
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