Cc1ccc(-n2c([S-])c(C(=O)Nc3ccc(OC(F)F)cc3)[n+]3ccc(C(=O)NCCO)cc23)cc1C
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?