CC(C)C(=O)NCC1CCC2(CCN(Cc3ccc(-c4cccc(Cl)c4)o3)CC2)O1
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?