5-Acetamido-1,3,4-thiadiazole-2-sulfonic acid
1-Acetoxy-2,5-dioxopyrrolidine-3-sulfonic acid
(2-Thioxothiazolidin-4-yl)methanesulfonic acid
(2,5-Dioxoimidazolidin-4-yl)methanesulfonic acid
1-((4-(4-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl)butanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid
1,1'-((2,3-Dihydroxysuccinyl)bis(oxy))bis(2,5-dioxopyrrolidine-3-sulfonic acid)
2-(5-((2H-Chromen-3-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)ethanesulfonic acid
3-Chloro-4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid
4-(3-(Ethoxycarbonyl)-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid
4-Acetamidobenzenesulfonic acid
(5-Carbamoyl-1-ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridin-3-yl)methanesulfonic acid
4-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-1-((2,5-dioxopyrrolidin-1-yl)oxy)-1-oxobutane-2-sulfonic acid
1-((2-Carbamothioylhydrazono)methyl)isoquinoline-5-sulfonic acid
4-((1,3,4-Thiadiazol-2-yl)amino)-4-oxo-2-sulfobutanoic acid
8-Hydroxy-7-(2-hydroxy-2-(4-nitrophenyl)acetamido)quinoline-5-sulfonic acid trihydrate
2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic acid
2-(5-((3-(4-Fluorophenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)ethanesulfonic acid
2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)-2-sulfopropanoic acid
1-(2-Methyl-4-sulfophenyl)-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid
2-Stearamidoethanesulfonic acid
