CN(C)c1ccc2nc3c(C(=O)O)cc(O)c(O)c3[o+]c2c1.[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?