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异丁烷
具有4个碳原子的带支链饱和烷烃。又称2-甲基丙烷或三甲基甲烷。分子式为C4H10,是正丁烷的同分异构体。常温常压下为无色可燃性气体,稍有气味,微溶于水,可溶于乙醇、乙醚等,熔点-159.42℃,沸点-11.73℃。
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