$\begin{matrix}
C{{H}_{2}}-CH-C{{H}_{2}}-C{{H}_{2}} \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\, \\
N{{H}_{2}}\,\,\,\,C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,N{{H}_{2}} \\
\end{matrix}$ નું $IUPAC$ નામ શું હશે ?