CCN(CC)CCNC(=O)c1ccc(NC(=O)c2cccc(S(=O)(=O)[N-]c3ccc(C)cc3)c2)cc1.[K+]
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?