NS(=O)(=O)C1CCCCC1C(=O)NNC(=O)C(=O)Nc1nnc(S)[nH]1
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?