Cc1cccc(C(C)C)c1NC(=O)/C(Cc1c([N+](=O)[O-])cccc1[N+](=O)[O-])=N/NC(=O)CC#N
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?