1) n-heptane
2) 3-methyl hexane
3) 2-methyl hexane
4) 2,2-dimethyl pentane
5) 2,3-dimethyl pentane
6) 2,4-dimethyl pentane
7) 3,3-dimethyl pentane
8) 3-ethyl pentane
9) 2,2,3-trimethyl butane
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