Cc1nn(C2CCS(=O)(=O)C2)c(Cl)c1/C=C/C(=O)OCC(=O)c1c[nH]c2ccccc12
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?