Cc1sc2nc(SCCN(C)C)n(-c3ccccc3)c(=O)c2c1-c1ccc(F)cc1
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?