Cc1ccc(-n2nc(C)c3c(C)c(CCC(=O)Nc4ccc(CN5CCCC5)cc4)c(C)nc32)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?