COc1ccc2c(c1)-c1nc(=S)n(CCCN(C)C)c3ccc([N+](=O)[O-])c(c13)N2.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?