O=C(c1ccc2c(c1)N(Cc1cccc(Cl)c1)C(=O)c1ccccc1[S+]2[O-])N1CCN(c2cccc(C(F)(F)F)c2)CC1
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?