CC(=O)N1c2ccc(S(=O)(=O)N3CCC(C(=O)NCc4ccc(Cl)cc4)CC3)cc2CC1C
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?