CCN(c1ccccc1)S(=O)(=O)c1ccc(C(=O)N(CCCN(C)C)c2nc3c(C)cccc3s2)cc1.Cl
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?