Cc1nc(/N=N\c2ccc(S(=O)(=O)O)cc2S(=O)(=O)O)c(COP(=O)(O)O)c(C=O)c1O
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?