Cc1ccc(/C=C2\SC(=S)N(CCCC(=O)Nc3cccc(C(=O)O)c3)C2=O)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?