Cc1ccc(-n2c(=O)c3c4c(sc3n(CC(=O)c3ccc(Cl)cc3)c2=O)CCC4)cc1C
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?