2-Methoxy-5-nitropyridine CAS 5446-92-4 is obtained by etherification of 2-chloro-5-nitropyridine. Sodium methoxide was added dropwise to the mixture of 2-chloro-5-nitropyridine and methanol under stirring, and crystals were precipitated in crushed ice after adding sulfur for 1 h. Filter, dry, and recrystallize with methanol to obtain the finished product. The yield was 92%.
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Product Name |
2-Methoxy-5-nitropyridine |
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Formula |
C6H6N2O3 |
Molecular Weight |
154.12 |
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CAS NO. |
5446-92-4 |
Quantity |
500KG |
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Items |
Specification |
Results |
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Appearance |
Clear colorless to yellow Liquid |
Conforms |
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Assay |
≥99.0% |
99.1% |
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CONCLUSION |
The result conform with standard |
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Melting point 104-108°C (lit.)
Boiling point 277.46°C (roughestimate)
Density 0.45
Refractive index 1.5100(estimate)
Flash point 130°C
Storage ConditionsSealedindry,ChemicalbookRoomTemperatureForm Liquid
Acidity coefficient (pKa)-0?+-.0.10(Predicted)
ColorClearcolorlesstoyellow
water solubility insoluble
for organic synthesis. The product is reduced to obtain 5-amino-2-methoxypyridine, which is the intermediate of the drug. For example, it is used to produce the antimalarial rescue drug pyronaridine.
Used as a pharmaceutical intermediate
