O=C(CC(=O)n1nc(-c2ccccc2)c(/N=N/c2ccccc2C(=O)O)c1-c1ccccc1)Nc1ccc(Cl)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?