C2H4NO
C2H4NO is a molecular formula that denotes a composition of two carbon atoms, four hydrogen atoms, one nitrogen atom, and one oxygen atom. Its nominal molar mass is about 58.06 g/mol. As a formula alone, it does not specify a unique structure; a variety of constitutional isomers would be possible if the molecule were a neutral, closed-shell species.
In practice, applying the standard degree of unsaturation calculation to C2H4NO yields a value of 1.5, which
Because of this, C2H4NO is most often encountered in analytical contexts as an empirical or nominal formula