CCc1ccc(-c2[nH]c3c(c2-c2c(-n4cccc4)n(C)c(=O)[nH]c2=O)c(=O)[nH]c(=O)n3C)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?