O=C(O)c1cc(NS(=O)(=O)c2ccc(NC3CCCCC3)c([N+](=O)[O-])c2)cc(C(=O)O)c1
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?