Total number of carbon atoms present in parent chain is :

Parent Chain Carbon Count

Total Number of Carbon Atoms in Parent Chain

Longest parent chain (horizontal): CH₃–CH₂–CH₂–C–CH₂–CH₂–CH₂–CH₃

The total number of carbon atoms present in the parent chain is 8.

To find the parent chain, follow the longest continuous sequence of carbon atoms without branching. For the provided structure, the horizontal chain contains 8 carbon atoms from one end to the other, including the central carbon atom (where branching occurs).