31197-50-9 AIDS-032891 AIDS032891 Aromatic thiosulfone analog Benzenesulfonothioic acid, 4-(1,1-dimethylethyl)-, S-[4-(1,1-dimethylethyl)phenyl] ester NSC243179 S-(4-tert-Butylphenyl) 4-tert-butylbenzenesulfonothioate