Example: Methyl 3-methylbutyl ether (isoamyl methyl ether, $(\mathrm{CH}{\phantom{A}}_3){\phantom{A}}_2\mathrm{CHCH}{\phantom{A}}_2\mathrm{CH}{\phantom{A}}_2\mathrm{OCH}{\phantom{A}}_3$, sometimes condensed further to $(\mathrm{CH}{\phantom{A}}_3){\phantom{A}}_2\mathrm{CH}[\mathrm{CH}{\phantom{A}}_2]{\phantom{A}}_2\mathrm{OCH}{\phantom{A}}_3$.

Note: This term is sometimes also called a line formula, because it can be written on a single line, but the line formula explicitly shows all bonds.