Cc1cc(C)c(Cn2c(=O)n(CCCC(=O)NCc3ccc4c(c3)OCO4)c(=O)c3sccc32)c(C)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?