O=C1/C(=C\c2cccc(Oc3ccccc3)c2)S(=O)(=O)C(c2ccccc2)N1c1cccc(Cl)c1
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?