CN(CCCNC(=O)c1nn(-c2ccc(Cl)cc2Cl)c2c1Cc1ccccc1-2)CCCNC(=O)c1nn(-c2ccc(Cl)cc2Cl)c2c1Cc1ccccc1-2
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?