CC(C)(C)[S+]([O-])N1Cc2cc(C(=O)NCc3ccc(Oc4ccccc4)cc3)nc(-c3cccc(-c4cc5ccccc5o4)c3)c2[C@H]1CCO
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?