N#CCCN(CCC#N)c1ccc(/C=C(\NC(=O)c2cc([N+](=O)[O-])ccc2Cl)C(=O)Nc2ccccc2)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?