Butane is, believe it or not, a totally organic compound made up of Alkane and Carbon. Butane can be used for filling your torches or lighters, as a solvent for making herbal concentrates and many other industrial and household uses. Purity is important when it comes to butane, there are cheap gasses that are potentially filled with impurities which people have reported killing their lighters and torches or having a foul taste. Because of these concerns it is imperative to get butane rated for high purity, we at Mr.Nice Guys only sell butane that we use personally in our devices.