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4,6-dihydroxybenzene-1,3-disulfonic acid synthesis

5synthesis methods
6409-58-1 Synthesis
2,4-Dihydroxybenzenesulfonic acid

6409-58-1
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Yield:6409-58-1 39 % Spectr. ,17724-11-7 61 % Spectr.

Reaction Conditions:

with sulfur trioxide;water-d2 in nitromethane;Product distribution;(with 4 equiv. SO3); 1.) 0 deg C, 60 min, 2.) 40-60 deg C;

References:

Cerfontain, Hans;Coenjaarts, Norbert J.;Koeberg-Telder, Ankie [Recueil des Travaux Chimiques des Pays-Bas,1989,vol. 108,# 1,p. 7 - 13]