CS(=O)(=O)C1=NN2C(=N)/C(=C\c3ccc(OC(=O)c4ccco4)cc3)C(=O)N=C2S1
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?