CC(=O)N1c2ccc(S(=O)(=O)N3CCCC(C(=O)N4CCCCC4)C3)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?