COc1ccccc1CNC(=O)c1cc(-c2ccccc2C)n(CC2CC(c3cccc([N+](=O)[O-])c3)=NO2)n1
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?