NC(=S)c1ccc[n+]([C@@H]2O[C@@H](COP(=O)([O-])OP(=O)(O)OC[C@H]3O[C@@H](n4cnc5c(N)ncnc54)[C@H](OP(=O)([O-])O)[C@H]3O)C(O)C2O)c1.[Na+]
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?