N#C/C(=C\c1cn(-c2ccccc2)nc1-c1cccnc1)c1nnc2n1CCCCC2
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?