COc1ccccc1-c1c(C(F)(F)F)oc2cc(OC(=O)c3ccc([N+](=O)[O-])c(C)c3)ccc2c1=O
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?