Cc1ccc(S(=O)(=O)Oc2ccc(/C=C(/NC(=O)c3ccccc3)C(=O)NCCCC(=O)O)cc2)cc1
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?