CC(=O)NNc1nc(C)c(C(=O)NNC(=O)C(=O)Nc2c([N+](=O)[O-])ccc(C)c2C)s1
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?