CC(CSc1nc2c(c(=N)n1-c1ccccc1)c(=S)n(-c1ccccc1)c(=S)n2-c1ccccc1)CN(C)C
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?