thumb|right|Chemical structure of the 5-(4H)-oxazolone isomer Oxazolone is a chemical compound and functional group, with the molecular formula C3H3NO2. It was named in-line with the Hantzsch–Widman nomenclature and is part of a large family of oxazole based compounds. There are a total of 5 structural isomers of oxazolone; 3 according to the location of the carbonyl group and 2 more according to the location of the double bond C=X (with X= N or C): 2-(3H)oxazolone 2-(5H)oxazolone 4-(5H)-oxazolone 5-(2H)-oxazolone 5-(4H)-oxazolone
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thumb|right|Chemical structure of the 5-(4H)-oxazolone isomer Oxazolone is a chemical compound and functional group, with the molecular formula C3H3NO2. It was named in-line with the Hantzsch–Widman nomenclature and is part of a large family of oxazole based compounds. There are a total of 5 structural isomers of oxazolone; 3 according to the location of the carbonyl group and 2 more according to the location of the double bond C=X (with X= N or C): 2-(3H)oxazolone 2-(5H)oxazolone 4-(5H)-oxazolone 5-(2H)-oxazolone 5-(4H)-oxazolone
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