Cc1cc(C)n(-c2nc(C)c(C)c(=O)n2CC(=O)Nc2cccc([N+](=O)[O-])c2)n1
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?