OCC(O)C(OC1OC(CO)C(O)C(O)C1O)c1nn(-c2ccc(Cl)cc2)c2nc3cc(Cl)c(Cl)cc3nc12
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?