Though, since the second carbon is the only place where the methyl group can go without the molecule, once again becoming butane, properly proper chemists just drop the two and call it methylpropane.

虽然，由于第二个碳是甲基可以在没有分子的情况下离开的唯一位置，再次变成丁烷， 适当的化学家只是放弃这两个并称之为甲基丙烷。