CC1=CC2OC3CC4OC(=O)/C=C\C=CC(C(C)O)OCC(O)C(C)CC(=O)OCC2(CC1O)C4(C)C31CO1
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?