N#Cc1c(N2CCN(c3ccc([N+](=O)[O-])cc3)CC2)[n+]([O-])c2ccc(Cl)cc2[n+]1[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?