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(±)-Equol ((R,S)-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. (±)-Equol preferentially binds ERβ (Ki = 0.73 nM) and demonstrates approximately 9-fold lower affinity for ERα (Ki = 6.41 nM). (±)-Equol is also a potent antagonist of dihydrotestosterone, which has important implications for prostate cancer and other androgen-mediated pathologies.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 5 mg | $30 | In Stock | |
| 10 mg | $39 | In Stock | |
| 25 mg | $59 | In Stock | |
| 50 mg | $79 | In Stock | |
| 100 mg | $106 | In Stock | |
| 200 mg | $140 | In Stock | |
| 1 mL x 10 mM (in DMSO) | $30 | In Stock |
| Description | (±)-Equol ((R,S)-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. (±)-Equol preferentially binds ERβ (Ki = 0.73 nM) and demonstrates approximately 9-fold lower affinity for ERα (Ki = 6.41 nM). (±)-Equol is also a potent antagonist of dihydrotestosterone, which has important implications for prostate cancer and other androgen-mediated pathologies. |
| Targets&IC50 | ERβ:0.73 nM(Ki), ERα:6.41 nM(Ki) |
| Synonyms | Equol, (R,S)-Equol |
| Molecular Weight | 242.27 |
| Formula | C15H14O3 |
| Cas No. | 94105-90-5 |
| Smiles | OC=1C=C2C(CC(CO2)C3=CC=C(O)C=C3)=CC1 |
| Relative Density. | 1.286g/cm3 |
| Color | White |
| Appearance | solid |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 100 mg/mL (412.76 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween 80+45% Saline: 4 mg/mL (16.51 mM), Sonication is recommended. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
DMSO
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