CC1CCN(CCCn2c(=S)[nH]c3c(sc4ccc([N+](=O)[O-])cc43)c2=O)CC1.Cl
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?