CCOc1ccc(S(=O)(=O)Nc2ccc3c(c2)c(C(C)=O)c(C)n3S(=O)(=O)c2ccc(OCC)cc2)cc1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?