Cc1ccc(-c2csc(SCC(=O)c3c(N)n(C4CC4)c(=O)[nH]c3=O)n2)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?