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CAS No. : | 62147-49-3 | MDL No. : | MFCD00051019 |
Formula : | C6H12O6 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | - |
M.W : | 180.16 | Pubchem ID : | - |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
45% | With ammonium chloride In water | A. 2,4-Diamino-6-(hydroxymethyl)-pteridine hydrochloride To a solution of 42.8 g (0.167 mol) of 2,4,5,6-tetraminopyrimidine sulfate monohydrate, which had been recrystallized from boiling 1N sulfuric acid, in 700 ml of boiling water was added gradually a solution of 40.7 g (0.167 mol) of barium chloride dihydrate in 100 ml water. After a short period of digestion, the mixture was filtered from the precipitated barium sulfate, the filtrate was stirred with 5 g of decolorizing carbon and filtered again. This solution was added to a stirred mixture of 426 g of ammonium chloride, 26.3 g (0.167 mol) of cysteine hydrochloride, 46.6 g (0.259 mol) of dihydroxyacetone dimer and 970 mol of water in a 3-l three-necked flask equipped with a stirrer and a glass-fitted gas inlet tube. The resulting mixture was stirred for 67 hours at room temperature during which time a slow stream of oxygen was passed through the mixture via the gas inlet tube. The product, 2,4-diamino-6-(hydroxymethyl)-pteridine hydrochloride, separates as a tan solid which was collected by suction filtration, washed with water, and air dried; yield, 17.2 g (45percent). |