CCOC(=O)/C(C#N)=C(/NS(=O)(=O)c1cc(C)c(Cl)cc1[S-])[n+]1ccc(N(C)C)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?