CC1Cc2cc(S(=O)(=O)N3CCC(C(=O)Nc4ccccn4)CC3)ccc2N1C(=O)C1CCC1
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?