O=C(CSc1nc2ccccc2c(=O)n1-c1ccc(F)cc1)Nc1ccc(Cl)c(S(=O)(=O)N2CCOCC2)c1
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?