C#CC(O)/C=C/C(O)CCCC(O)CC#CC(O)C#CC(O)CCCC(O)/C=C/CCCCCC(=O)CCCCCCCCCCCCCC(O)C(O)C#CC(=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?