CCOc1ccc(/C(C)=N/N2C(=O)C(CC(=O)Nc3ccc(OC)cc3[N+](=O)[O-])S/C2=N\c2cccc(C)c2C)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?