O=S(=O)(Oc1ccc2ccccc2c1-c1c(OS(=O)(=O)C(F)(F)F)ccc2ccccc12)C(F)(F)F
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?