O=C(Nc1sc2c(c1C(=O)NCC1CCCO1)CCC2)c1cc(=O)c2cc(Cl)ccc2o1
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?