COc1ccc(-c2cc(C(F)(F)F)n3nc(C(=O)NCc4ccco4)cc3n2)cc1OC
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?