CCS(=O)(=O)N1Cc2ccccc2CC1C(=O)Nc1cc(S(C)(=O)=O)ccc1Cl
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?