CCOC(=O)C1C(c2ccc(Cl)cc2Cl)NC(c2ccc(C)cc2)C(C(=O)OC)S1(=O)=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?