Α-Zearalenol
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| Other names | alpha-Zearalenol; trans-Zearalenol; 2,4-Dihydroxy-6-(6α,10-dihydroxy-trans-1-undecenyl)benzoic acid μ-lactone | 
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| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.264.264 | 
| Chemical and physical data | |
| Formula | C18H24O5 | 
| Molar mass | 320.385 g·mol−1 | 
| 3D model (JSmol) | |
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α-Zearalenol is a nonsteroidal estrogen of the resorcylic acid lactone group related to mycoestrogens found in Fusarium spp. It is the α-epimer of β-zearalenol. Along with β-zearalenol, it is a major metabolite of zearalenone formed mainly in the liver but also to a lesser extent in the intestines during first-pass metabolism. A relatively low proportion of β-zearalenol is metabolized from zearalenone compared to α-zearalenol in humans. α-Zearalenol is about three to four times more potent as an estrogen relative to zearalenone.