# What is the name of CH_3CH_2CH_2CH_3?

This is $\text{n-butane}$.
$\text{n-butane}$ has a boiling point of $1$ ""^@C. It is commonly supplied in canisters (sometimes small ones), with some quantities of isomeric $\text{methylpropane}$. $\text{Butane}$ with $\text{propane}$ is a constituent of $\text{LPG, liquefied petroleum gas}$. The short carbon chain makes it very clean burning. Of course for this reason it is a potent greenhouse gas.