CS(=O)(=O)O.CSc1ccc2c(c1)[C@H](N1CCN(C)CC1)Cc1ccccc1S2
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?