CCCCn1c(N)c(N(CCOC)C(=O)c2cccc(S(=O)(=O)N(C)c3ccccc3)c2)c(=O)[nH]c1=O
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?