CCN1c2ccccc2C(C(SC)S(=O)(=O)c2ccc(C)cc2)c2c1[nH]c(=O)n(C)c2=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?