CCN(c1ccccc1)S(=O)(=O)c1ccc2[nH]cc(C(=O)NCc3ccc(C)cc3)c(=O)c2c1
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?