CCN(CC)P(=O)(Nc1ccc(SC(F)F)cc1)c1ccc(N(C)C)cc1NC(=O)c1ccco1
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?