Names | |
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IUPAC name
Chromen-4-one
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Preferred IUPAC name
4H-1-Benzopyran-4-one | |
Other names
4-Chromone; 1,4-Benzopyrone; 4H-Chromen-4-one; Benzo-gamma-pyrone; 1-Benzopyran-4-one; 4H-Benzo(b)pyran-4-one
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.007.035 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C9H6O2 | |
Molar mass | 146.145 g·mol−1 |
Acidity (pKa) | -2.0 (of conjugate acid) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chromone (or 1,4-benzopyrone) is a derivative of benzopyran with a substituted keto group on the pyran ring. It is an isomer of coumarin.
Derivatives of chromone are collectively known as chromones. Most, though not all, chromones are also phenylpropanoids.