2-Bromo-5-nitropyridine CAS 4487-59-6
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2-Bromo-5-nitropyridine CAS 4487-59-6

2-Bromo-5-nitropyridine CAS 4487-59-6 is an off-white to pale yellow crystal, used for the synthesis of pharmaceutical intermediates.

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Product Description

Believe Chemical is a leading China 2-Bromo-5-nitropyridine CAS 4487-59-6 manufacturer, supplier and exporter. Adhering to the pursuit of perfect quality of products, so that our 2-Bromo-5-nitropyridine CAS 4487-59-6 have been satisfied by many customers. Shandong Believe Chemical Pte. Ltd. is a high-tech enterprise integrating R &D and sales of chemical technology. 


We are good at the advantages of chemical products in the field. Our products are exported to Europe, the United States, Japan, South Korea, Southeast Asia and other countries and regions. With science and technology as the guide, honesty as the foundation, quality as the life, and relying on the enterprise concept of innovation and development, we sincerely hope to establish exchanges and extensive cooperation with domestic and foreign customers to create prosperity!


2-Bromo-5-nitropyridine CAS 4487-59-6 Chemical Specification 

Product Name

2-Bromo-5-nitropyridine

Formula  

C5H3BrN2O2

Molecular Weight 

202.99

CAS NO.  

4487-59-6

Quantity

500KG


Items

Specification

Results

Appearance

Light yellow to light brown Crystalline Powder

Conforms

Assay

99% 99.28%

CONCLUSION

The result conform with standard


2-Bromo-5-nitropyridine CAS 4487-59-6 Chemical Properties

Melting point 139-141°C (lit.)
Boiling point 145-147°C/10mmHg(lit.)
Density 1.8727(roughestimate)
Refractive index 1.6200 (estimate)
Flash point 145-147°C/10mm
Storage conditions Inertatmosphere, 2-8°C
Solubility Chloroform, HotMethanol
MorphologyCrystallinePowder
Acidity coefficient (pKa)-3.24±0.10(Predicted)
ColorLightyellowtolightbrown


2-Bromo-5-nitropyridine CAS 4487-59-6 Application

A mixture of 1.53 g (10.94 mmol) of 2-hydroxy-5-nitropyridine, 4.1 g (12.71 mmol) of tetrabutylammonium bromide and 3.71 g (26.1 mmol) of P2O5 in 29 ml of benzene was heated at reflux Stir for 1 hour. The mixture was cooled to room temperature, the upper layer was separated by decantation, and the lower layer was triturated with benzene (3 x 6 ml). The extracts were combined with the organic phase, washed with a saturated solution of NaHCO3 and NaCl, and dried over MgSO4. The solvent was distilled off under reduced pressure, and the residue was recrystallized from petroleum ether. Yield 1.7g (48%). Mp138-139°C, (bp40-70°C).



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