Dinitro-disulfonic stilbene

Titanium ions can also he used as redox catalysts for the indirect cathodic reduction of nitro compounds (417). The electroreduction is carried out in an H20-H2S04/Ti(S04)2-(Pb/Cu) system at 45 80°C under 5 20Am . Nitrobenzene, dinitrobenzene, nitrotoluene, 2,4-dinitrotoluene, 2-nitro-m-xylene, nitro-phenol, 2,4-dinitrophenol, nitrophenetole, o-nitroanisole, 4-nitrochlorotoluene, ni-trobenzenesulfonic acid, and 4,4 -dinitro-stilbene-2,2 -disulfonic acid can all be reduced by this procedure to the corresponding amino compounds (418) in good yields (Scheme 146) [513-516]. Tin... 

Condensation ofNitro Compounds. The stflbene dyes derived from condensation of 4-nitrotoluene-2-sulfonic acid [121-03-9] (para acid) in aqueous caustic solution either alone or with aryl amines, are mixtures of dyes containing azo and azoxy groups with indefinite structures. The primary products are 4,4,-dinitro-2>2,-stilbenedisulfonic acid [128 42-7] and 4,4,dinitrodibenzyl-2>2,-disulfonic acid [6404-60-0] which condense further to form the dye. The properties of the stilbene dyes vary with the amounts and concentrations of the reactants and with the time and temperature of heating. The hue... 

Ethenediyl)bis(5-nitrobenzenesulfonic acid), di-sodium salt. Benzenesulfonic acid, 2,2 -(1,2-ethenediyl)bis(5-nitro-, disodium salt 4,4 -Dinitrostilbene-2,2 -disulfonic acid, disodium salt Disodium 4,4 -dinilro-2,2 -stilbene-disulfonic acid Disodium 4,4 -dinitro-2,2 -stilbene-disulfonate Disodium 4,4 -dinitrostilbene-2,2 -disulphon-ate EINECS 223-051-2 NSC 163175 2,2 -Stilbenedisulfonic acid, 4,4 -dlnltro-, disodium salt. 

In the striatum of the rat extracellular glutamate levels increased the formation of hydroxyl radicals (Yang et al. 1995). Dihydrokinate (1 mmol/1 in perfusate) and an anion channel blocker, 4,4 -dinitro-stilben-2,2 -disulfonic acid (1 mmol/1), suppressed glutamate release in rat striatum (Seki et al. 1999). 

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