Oxazolone

Chemical structure of the 5-(4H)-oxazolone isomer

Oxazolone is a chemical compound with the molecular formula C₃H₃NO₂. There are three isomers according to the location of the carbonyl group and two more according to the location of the double bound C=X (with X=N or C):

• 2-(3H)oxazolone.
• 2-(5H)oxazolone.
• 4-(5H)-oxazolone.
• 5-(2H)-oxazolone.
• 5-(4H)-oxazolone.

The oxazolone derivative 4-ethoxymethylene-2-phenyloxazol-5-one (a derivative of the 5-(4H)-oxazolone) is a chemical allergen used for immunological experiments, particularly for experiments on delayed type hypersensitivity.^[1]

Chemical structure of 4-(ethoxymethylene)-2-phenyloxazol-5-one

See also

• Oxazole
• 2,4-Dinitrochlorobenzene

References

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