Cc1cccc(-c2nc(CC(=O)Nc3cccc(S(=O)(=O)NC4=NCCC4)c3)cs2)c1
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?