C/C(=N/NC(N)=S)C(CN(C)C)C(C1=C(O)c2ccccc2OC1)c1ccccc1.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?