Cc1cc(N2CCN(c3cccc(C(F)(F)F)c3)CC2)n2nc(-c3ccccc3)nc2n1
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?