[N-]=[N+]=NC[C@H]1OCO[C@H](CN=[N+]=[N-])[C@@H](OCCOCCCl)[C@@H]1OCCOCCCl
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?