H H H H H
| | | | |
H - C - C - C - C - C - H
| | | | |
H H H H H
CH3 - CH2 - CH2 - CH2 - CH3
H H H H H H
| | | | | |
H - C - C - C - C - C - C - H
| | | | | |
H H H H H H
CH3 - CH2 - CH2 - CH2 - CH2 - CH3