CN(C(=O)COC(=O)c1c2c(nc3ccccc13)/C(=C/c1cccc([N+](=O)[O-])c1)CCC2)C1CCS(=O)(=O)C1
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?