COc1ccc(C)cc1Nc1n[n+](-c2ccccc2)c(-c2ccc(C(=O)O)cc2)s1.[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?