Cc1ccc(NC(=O)CN(c2ccc(Cl)cc2)S(=O)(=O)c2cc([N+](=O)[O-])ccc2Cl)c(C)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?