O=[N+]([O-])c1ccc(/C=N/n2c(S)nnc2CCc2nnc(S)n2/N=C/c2ccc([N+](=O)[O-])o2)o1
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?