Cc1c(C(=O)N(C)C)sc2c1c(=O)n(-c1ccc(Cl)c(Cl)c1)c(=O)n2CC(=O)N1CCCCC1C
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?