Cc1cc(-c2ccc(/N=N/c3cc(S(=O)(=O)[O-])c4ccccc4c3N)c(C)c2)ccc1/N=N/c1cc(S(=O)(=O)[O-])c2ccccc2c1N.[Na+].[Na+]
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?