CCOc1cc(C2CC(c3ccc(NS(=O)(=O)c4cc([N+](=O)[O-])ccc4C)cc3)=NN2)ccc1O
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?