CH2=CH-(CH2)2-CH(CH3)-CH3

The given molecule is 2-methylpent-1-ene.

The structure of 2-methylpent-1-ene can be represented as:

                    CH3
                     |
 CH2=CH-CH2-CH(CH3)-CH3

Here, the double bond is between the second and third carbon atoms (2 and 3), and there is a methyl (CH3) group attached to the second carbon atom.

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