CCCCCCCCCCCCCCCCNc1ccn(C2CC(O)C(COC(c3ccccc3)(c3ccccc3)c3ccc(OC)cc3)O2)c(=O)n1
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?