CCOC1(COP(=O)(OCc2ccccc2)OCc2ccccc2)COC(COP(=O)(OCc2ccccc2)OCc2ccccc2)(OCC)CO1
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?