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 0K enthalpies (kJ mol^-1)

Isomers of C₃H₇NO₂

index	Species	CAS number	Name	Relative experimental enthalpy (kJ mol-1)	sketch
a	NH2COOC2H5	51796	Urethane
b	CH3CH(NH2)COOH	56417	Alanine
c	NH2CH2CH2COOH	107959	β–alanine
d	CH3NHCH2COOH	107971	Sarcosine
e	CH3CH(CH3)ONO	541424	Isopropyl nitrite
f	C3H7ONO	543679	Propyl nitrite