N#CCCN(CCC#N)c1ccc(/C=C2\N=C(c3cc([N+](=O)[O-])ccc3Cl)N(S(=O)(=O)c3ccccc3)C2=O)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?