CS(=O)(=O)c1ccc2c(c1)SC1=NC(=O)/C(=C/c3ccc(O)c(O)c3)C(=N)N12
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?