N=C(N)NS(=O)(=O)c1ccc(NC(=O)c2ccc3nc4ccccc4c(Nc4ccc(S(N)(=O)=O)cc4)c3c2)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?