Cl.O=C(OC[C@@H]1CCCN2CCCC[C@H]12)c1cc2ccccc2oc1=O
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?