CCCCOC(=O)NC(=O)c1cn(CCCOC(=O)CCCCCCCCC(=O)OCCCn2cc(C(=O)NC(=O)OCCCC)c(=O)n(C)c2=O)c(=O)n(C)c1=O
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?