Cc1cccn2c(=O)nc(SCC(=O)N3N=C(c4cccs4)CC3c3ccc(F)cc3)nc12
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?