O=[N+]([O-])c1ccc(Cl)c(S(=O)(=O)Nc2ccc(S(=O)(=O)N3CCOCC3)cc2)c1
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?