COc1ccc(C(=O)Nc2cccc(C(=O)OCc3cc(=O)n4c5c(sc4n3)CCCC5)c2)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?