Cc1ccc(Nc2cccc3c2C(=O)c2cccc(Nc4ccc(C)cc4S(=O)(=O)O)c2C3=O)c(S(=O)(=O)[O-])c1.[Na+]
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?