COc1ccc(N(C(=O)Nc2ccc(Cl)c(Cl)c2)C2c3cccn3C(=O)N2c2ccc(Cl)c(Cl)c2)cc1
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?