CC1=NN(C(=O)CC(=O)N(C(=O)c2ccccc2Cl)c2ccc(C)cc2)C(=O)C1/N=N/c1ccc([N+](=O)[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?