Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Relative enthalpies of isomers - Comparison of 298.15K enthalpies (kJ mol^-1)

Isomers of C₂H₄O₂

index	Species	CAS number	Name	Relative experimental enthalpy (kJ mol-1)	sketch
a	CHOCH2OH	141468	hydroxy acetaldehyde
b	C2H4O2	61233190	1,3-dioxetane
c	CH3COOH	64197	Acetic acid	0.0
d	CH3OCHO	107313	methyl formate	79.9