CC1(C)C(=O)C(O)=CC2C1=CCC1C2(C)C(=O)CC2(C)C(C(C)(O)C(=O)CC(O)C(C)(C)O)C(O)CC12C
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?