Cc1cc(Cl)ccc1NC(=O)/C(=N\NC(C)(C)C)C(C#N)c1nc(-c2ccc([N+](=O)[O-])cc2)cs1
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?