CCOC(=O)N1CCN([N+]([O-])=NOc2cc(O/N=[N+](\[O-])N(CC)CC)c([N+](=O)[O-])cc2[N+](=O)[O-])CC1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?