O=[N+]([O-])c1cc(Cl)c(O)c(-[n+]2c(-c3ccccc3)cc(-c3ccccc3)cc2-c2ccccc2)c1.[O-][Cl+3]([O-])([O-])[O-]
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?