Cc1ccc(NS(=O)(=O)c2ccc(-n3cc(C(=O)c4ccccc4O)cn3)c([N+](=O)[O-])c2)c(C)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?