Cc1cccc(NC(S)=NCC23C=CC(O2)C2C(=O)N(c4ccc(Cl)cc4)C(=O)C23)c1
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?