NC(=S)N/N=C(/C(=O)Nc1nc2ccc([N+](=O)[O-])cc2s1)C1C(=O)NC(=S)NC1=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?