Cl.NCCCCC(NC(=O)C(N)Cc1ccc(O)cc1)C(=O)NC(Cc1ccc(O)cc1)C(=O)NC(CCCCN)C(=O)ON1C(=O)CCC1=O
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?