O=C(Nc1cc(Cl)c(Cl)cc1Cl)C(=O)C(C(=O)c1ccc(Cl)c(Cl)c1)C1OC(=O)c2ccccc21
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?