COc1ccc(Cl)cc1NC(=O)C(C)OC(=O)c1ccc(NS(=O)(=O)c2ccc3[nH]c(O)nc3c2)cc1
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?