Cc1ccc(C)c(Nc2c([N+](=O)[O-])cc(C(=O)N3CC(=O)Nc4ccccc43)cc2[N+](=O)[O-])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?