CCN(CC)CCN(C(=O)c1c(F)cccc1F)c1nc2cc(C)cc(C)c2s1.Cl
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?