Cc1ccc(NC(=O)CC/C(CC(=O)C(C)(C)C)=N\Nc2ccc([N+](=O)[O-])cc2[N+](=O)[O-])cc1C
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?