CC(c1ccco1)N(C(=O)c1ccccc1NS(=O)(=O)c1cccc([N+](=O)[O-])c1)c1ccccn1.Cl
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?