N#Cc1cc2[nH]c3ccccc3c2[n+](-c2ccc([N+](=O)[O-])cc2)c1N.[Cl-]
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?