COc1ccc2/c(=C/c3ccc(N(C)C)cc3)c3cc(-c4ccccc4)[n+](C)n3c2c1.O=S(=O)([O-])C(F)(F)F
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?