COc1ccc(N2C(=O)/C(=C(\C)c3cc4ccccc4oc3=O)N=C2c2cc([N+](=O)[O-])ccc2Cl)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?