O=C(Nc1ccccc1)c1cc(S(=O)(=O)Nc2n[nH]c(=O)[nH]2)c(SSc2cc(Cl)c(C(=O)Nc3ccccc3)cc2S(=O)(=O)Nc2n[nH]c(=O)[nH]2)cc1Cl
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?