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 C₃H₄O

index	Species	CAS number	Name	Relative experimental enthalpy (kJ mol-1)	sketch
a	C3H4O	107197	2-Propyn-1-ol
b	C3H4O	9000071	allenol
c	C3H4O	6004440	Methylketene	0.0
d	CH2CHCHO	107028	Acrolein	2.0
e	C3H4O	5009278	Cyclopropanone	102.0