CCOc1ccc(-c2cc(C)[n+](CCN3CCOCC3)c(-c3ccc(OCC)cc3)c2)cc1.[O-][Cl+3]([O-])([O-])[O-]
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?