COc1ccc(C2CC(=O)c3cc(-c4nc(-c5cccc([N+](=O)[O-])c5)cs4)c(=O)n(-c4ccc(OC)cc4)c3C2)cc1
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?