Compound No.

R’

1

n-C₁₈H₃₇

2

n-C₁₄H₂₉

3

n-C₁₂H₂₅

4

n-C₁₀H₂₁

5

2-Ethylhexyl

6

n-C₆H₁₃

7

n-C₄H₉