In Business 32 Years - Since 1980
THE CURRENT TIME at LC Labs is:
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In Business 32 Years - Since 1980 |
THE CURRENT TIME at LC Labs is: |
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Size |
US $ |
€ |
£ |
¥ |
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50 mg |
73 |
55 |
46 |
5600 |
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100 mg |
129 |
98 |
82 |
9900 |
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500 mg |
495 |
376 |
313 |
37900 |
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Note: Our Euro, Pound, and Yen prices are revised regularly to account for currency exchange rate fluctuations.
| Compare Prices and Purity — LC Labs vs. Other Suppliers |
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M.W. 256.25
C15H12O4
Storage: Store at or below -20 ºC. Solubility: Soluble in DMSO, methanol, or ethanol. Disposal: A
Find and View a Certificate of Analysis for this product
View the MSDS for this product
Human urinary metabolite of daidzein. Heinonen, S., et al. "Identification of isoflavone metabolites dihydrodaidzein, dihydrogenistein, 6'-OH-O-dma, and cis-4-OH-equol in human urine by gas chromatography-mass spectrometry using authentic reference compounds." Anal. Biochem. 274: 211-219 (1999).
This product is a racemic mixture of the R- and S-enantiomers. As of this writing, we are not aware of any studies establishing the stereochemistry of the human urinary metabolite form of dihydrodaidzein. This is an important point; the natural metabolite is likely to be a single stereoisomer with different biological properties from the racemic mixture.
The Heinonen et al. article makes many references to the "enol tautomer" of dihydrodaidzein. Although is it not always obvious from the wording in their descriptions, a careful reading indicates that all references in this article to the "enol tautomer" of dihydrodaidzein refer to a silylated derivative of this compound. The trimethylsilyl ether of the enol is indeed an isolatable compound, whereas the free, unsilylated enol form is in dynamic equilibrium with the keto form and cannot be isolated separately.
We have found that dihydrodaidzein is somewhat unstable in air; it partially oxidizes to form daidzein if left at room temperature for a few days, even if kept in the dark as a dry powder. Storage in solid form at -20 ºC under nitrogen is recommended. Solutions are expected to be even more susceptible to oxidation than the solid, so they should be freshly prepared and used as quickly as possible.
NOTE: Although there are one or two exceptions, we generally do not carry products that are unstable and not easily maintained at 98-99+% purity under ordinary handling conditions. At present, dihydrodaidzein is not in stock, and we are working to solve production problems for this compound related to its stability.
Sold for laboratory or manufacturing purposes only; not for human, medical, veterinary, food, or household use.
Our products are for laboratory research only and are sold only to qualified research institutions, not to individuals or patients nor for veterinary use.
