CCC(=O)N1CCc2cc(Br)cc(S(=O)(=O)CCC(=O)NCCc3ccccc3Cl)c21
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?