CC1CCC(C(C)C)C(OC(=O)C[n+]2cc(-c3ccc(Cl)cc3)n3c2CCC3)C1.[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?