Compound $1$ is a volatile liquid $($boiling point $56C)$ that is used as a common organic solvent. The Mass, $IR,$ and ${?}^{1}H$ NMR spectra, along with ${?}^{13}C$ NMR data, are given below. Elemental Analysis: C$,62\mathrm{.}04$; $H,10\mathrm{.}41$;$O,27\mathrm{.}55.$ Using all of the information provided, determine the structure of Compound $1.$