CCN(CC)S(=O)(=O)c1ccc(-c2nnc(SCC(=O)N3c4ccccc4CC3C)n2CC)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?