COc1ccc(C2CC(c3ccc(NS(=O)(=O)c4cc([N+](=O)[O-])ccc4C)cc3)=NN2S(=O)(=O)c2cc([N+](=O)[O-])ccc2C)cc1
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?