Cc1ccc(C(=O)Nc2ccc(CP(=O)(O)O)cc2CP(=O)(O)O)cc1NC(=O)Nc1cc(C(=O)Nc2ccc(CP(=O)(O)O)cc2CP(=O)(O)O)ccc1C
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?