Nc1ccc(-c2nnc(-c3c(Cl)c(Cl)c(Cl)c(Cl)c3-c3nc4cc(C(=O)c5ccccc5)ccc4[nH]3)o2)cc1
The donor in a hydrogen bond is usually a strongly electronegative atom such as N, O, or F that is covalently bonded to a hydrogen bond. How many hydrogen bond donors does the molecule have?