Cc1cc(Cc2c(C)c(C)c(Cc3cc(C)cc(C(C)(C)C)c3O)c(C)c2C)c(O)c(C(C)(C)C)c1
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?