CCOC(=O)C1=C(C)N=c2s/c(=C/c3cccc([N+](=O)[O-])c3O)c(=O)n2C1c1ccc(OC)cc1OC
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?