If we wanted to give a technical name for it, isobutane would be 2-methylpropane.

果我们一个技术名称， 丁烷就是 2-甲基丙烷。

This is called isobutane or i-butane.

这称为丁烷或丁烷。

For example, n-butane boils at -0.5 degrees Celsius while isobutane boils at -11.7 degrees Celsius.

例，正丁烷的沸点为 -0. 5 摄氏度， 而丁烷的沸点为 -11. 7 摄氏度。

Earlier, I introduced you to isobutane, a compound with four carbons that are not all in a chain.

早些时候，我向您介丁烷， 这是一种具有四个碳原子的化合物， 这些碳原子并不全部位于链中。

So the number of atoms is butane only allows for 2 isomers, n-butane and isobutane.

所以原子数是丁烷只允许2种构体， 正丁烷和丁烷。

They call that isobutane and it is an isomer of butane, but according to these all important rules of nomenclature, it's not actually any sort of butane at all.

他们称其为丁烷， 是丁烷的构体，但根据所有重要的命名规则， 实际上根本不是丁烷。