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Names | |
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Preferred IUPAC name
3,4,5-Trihydroxy-2-[(3,7,8-trihydroxy-5,10-dioxo-5,10-dihydro[1]benzopyrano[5,4,3-cde][1]benzopyran-2-yl)oxy]benzoate | |
Other names
Valoneic acid bislactone | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C21H10O13 | |
Molar mass | 470.28 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Valoneic acid dilactone is a hydrolysable tannin that can be isolated from the heartwood of Shorea laevifolia[1] and in oaks species like the North American white oak (Quercus alba) and European red oak (Quercus robur).[2]
It shows an inhibitory effect on 5α-reductase,[1] an enzyme involved in steroids metabolism and prostate cancer.
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