CCCCN(C(=O)C(CCSC)N1C(=O)c2ccccc2C1=O)c1c(N)n(CCC)c(=O)[nH]c1=O
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?