C=C1C(O)C2(O)OCC34C(CC5C(C)=CC(=O)C(O)C5(C)C23)OC(=O)C(OC(=O)C/C=C/CCCCCCCC)C14
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?