C(/C=N/c1ccccc1)=C(/Nc1ccccc1)C12CC3CC(CC(C3)C1)C2.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?