O=[N+]([O-])c1cc(Cl)cc(/C=N/NC(=S)Nc2cc(S(=O)(=O)N3CCOCC3)ccc2Cl)c1O
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?