Clc1ccc2c(c1)C(c1ccccc1Cl)=NCc1nnc(N3CCN(CCSc4ccccc4)CC3)n1-2.O.O=C(O)/C=C/C(=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?