CCOc1ccc(C2C(C(=O)Nc3ccc(OC)cc3)=C(C)Nc3nc(SCc4ccc(Cl)cc4)nn32)cc1
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?