CCCCCCCNC(=O)C1(CC2CC(c3cccc(Br)c3)=NO2)CCN(C(=O)c2cc(OCC)c(OCC)c(OCC)c2)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?