C=CCN(c1cc(OC)c2[nH]c(C(=O)OCC)c(C)c2c1[N+](=O)[O-])S(C)(=O)=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?