1,2-Benzoquinone
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1,2-Benzoquinone, also called ortho-benzoquinone, is an organic compound with formula C6H4O2. It is one of the two isomers of quinone, the other being 1,4-benzoquinone. It is a red volatile solid that is soluble in water and ethyl ether. It is rarely encountered because of its instability, but it is of fundamental interest as the parent compound of many derivatives which are known.[3][4]
Quick Facts Names, Identifiers ...
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Names | |||
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Preferred IUPAC name
Cyclohexa-3,5-diene-1,2-dione[1] | |||
Other names
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3D model (JSmol) |
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ChEBI | |||
ChemSpider |
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ECHA InfoCard | 100.243.463 ![]() | ||
KEGG |
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Properties | |||
C6H4O2 | |||
Molar mass | 108.096 g·mol−1 | ||
Appearance | Red volatile solid | ||
Density | 1.424 g/cm3 | ||
Melting point | 60–70 °C (140–158 °F; 333–343 K) decomposes[2] | ||
Hazards | |||
Flash point | 76.4 °C (169.5 °F; 349.5 K) | ||
Related compounds | |||
Related compounds |
1,4-benzoquinone quinone | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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