Dicynone,Delalande,France,1965
Isopropyl Quinonesulfonate is a derivative of Sodium quinonesulfonate(51579-78-3), and an impurity of Calcium Dobesilate (C145100).
ChEBI: A dihydroxybenzenesulfonic acid that is hydroquinone in which one of the phenyl hydrogens is substituted by a sulfonic acid group.
163 grams of pure diethylamine bisulfite are added to an ethyl alcohol
solution of 108 grams of 1,4-benzoquinone at a temperature not above 5°C
and under continuous stirring. After reaction, the alcohol is removed by
distilling under vacuum. The product is recrystallized from ethyl alcohol at
80°C. Yield: 198 grams of diethylammonium cyclohexadienol 4-one-1-
sulfonate-4. MP 125°C.
