CC1CCC2C(=O)N(c3ccc(NC4CCN(Cc5ccccc5)CC4)c([N+](=O)[O-])c3)C(=O)C2C1
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?