CC1CC2C3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(Cl)C(O)C[C@]2(C)C1(OC(=O)c1ccco1)C(=O)CCl
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?