Cc1ccc(C)c(Cn2c(=O)n(-c3ccc(CC(=O)NCc4ccco4)cc3)c(=O)c3sccc32)c1
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?