CS(=O)(=O)O.O=c1c2ccccc2n2nnc3ccc(NCCCNCCNCCCNc4ccc5nnn6c7ccccc7c(=O)c4c56)c1c32
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?