Cc1cccc(NS(=O)(=O)c2cc(C(=O)OC(C)C(=O)NCc3ccc4c(c3)OCO4)ccc2C)c1
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?