CCOC1SC(SC)=NN1C(=O)C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(=O)N1N=C(SC)SC1OCC
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?