COc1cc2c3cc1Oc1c(OC)c(OC)cc4c1C(Cc1cccc(c1)Oc1ccc(c(O)c1)CC3N(C)CC2)N(C)CC4.Cl.Cl
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?