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ChemicalBook >> CAS DataBase List >>2,5-DibroMo-4-nitropyridine

2,5-DibroMo-4-nitropyridine

2,5-DibroMo-4-nitropyridine Structure
2,5-DibroMo-4-nitropyridine structure
CAS No.
221241-31-2
Chemical Name:
2,5-DibroMo-4-nitropyridine
Synonyms
Pyridine, 2,5-dibromo-4-nitro-
CBNumber:
CB32657504
Molecular Formula:
C5H2Br2N2O2
Molecular Weight:
281.89
MDL Number:
MOL File:
221241-31-2.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:50
Product description Number Pack Size Price
2,5-Dibromo-4-nitropyridine FD165820 25mg $80
2,5-Dibromo-4-nitropyridine FD165820 50mg $125
2,5-Dibromo-4-nitropyridine FD165820 100mg $200
2,5-Dibromo-4-nitropyridine FD165820 250mg $400
2,5-DIBROMO-4-NITROPYRIDINE 95.00% HCH0362837 5MG $498.05
More product size
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2,5-DibroMo-4-nitropyridine Properties

Boiling point 283.7±35.0 °C(Predicted)
Density 2?+-.0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
pka -5.49±0.18(Predicted)
Appearance White to light yellow Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332-H335-H315-H319
Precautionary statements  P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P

2,5-DibroMo-4-nitropyridine price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth Carbosynth FD165820 2,5-Dibromo-4-nitropyridine 221241-31-2 25mg $80 2021-12-16 Buy
Biosynth Carbosynth FD165820 2,5-Dibromo-4-nitropyridine 221241-31-2 50mg $125 2021-12-16 Buy
Biosynth Carbosynth FD165820 2,5-Dibromo-4-nitropyridine 221241-31-2 100mg $200 2021-12-16 Buy
Biosynth Carbosynth FD165820 2,5-Dibromo-4-nitropyridine 221241-31-2 250mg $400 2021-12-16 Buy
American Custom Chemicals Corporation HCH0362837 2,5-DIBROMO-4-NITROPYRIDINE 95.00% 221241-31-2 5MG $498.05 2021-12-16 Buy
Product number Packaging Price Buy
FD165820 25mg $80 Buy
FD165820 50mg $125 Buy
FD165820 100mg $200 Buy
FD165820 250mg $400 Buy
HCH0362837 5MG $498.05 Buy

2,5-DibroMo-4-nitropyridine Chemical Properties,Uses,Production

Synthesis

2,5-DIBROMO-4-NITROPYRIDINE 1-OXIDE

221241-25-4

2,5-DibroMo-4-nitropyridine

221241-31-2

General procedure for the synthesis of 2,5-dibromo-4-nitropyridine as 2,5-dibromo-4-nitropyridine nitrogen oxide: 2,5-dibromo-4-nitropyridine nitrogen oxide (18 g, 60.84 mmol) was added batchwise to stirred phosphorus tribromide (46 mL) at 0-5 °C. The reaction mixture was kept stirred at 5 °C for about 7 hours. Upon completion of the reaction, the mixture was slowly poured onto crushed ice and extracted with ethyl acetate. The organic layers were combined, washed with saturated brine and dried over anhydrous sodium sulfate. Subsequently, the organic phase was concentrated under reduced pressure to give the crude product. Finally, the crude product was purified by fast column chromatography (petroleum ether: ethyl acetate = 10:1) to afford the target compound 2,5-dibromo-4-nitropyridine (10 g, 59% yield).

References

[1] Patent: US2014/94456, 2014, A1. Location in patent: Paragraph 0832; 0835
[2] Patent: WO2015/153683, 2015, A1. Location in patent: Paragraph 0624

2,5-DibroMo-4-nitropyridine Preparation Products And Raw materials

Raw materials

2,5-DIBROMO-4-NITROPYRIDINE 1-OXIDE

Preparation Products

2,5-DibroMo-4-nitropyridine Suppliers

Global( 41)Suppliers
Supplier Tel Email Country ProdList Advantage
Accela ChemBio Inc. 		+1-858-6993322 info@accelachem.com United States 21193 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		+8613580539051 joe@yuhengpharm.com CHINA 21142 58
KARMEL TECHNOLOGY (HK) CO.,LIMITED 		+8618795957998 karmelhk@126.com CHINA 2886 58
CR Corporation Limited 		+8613062833949 fred.wen@crcorporation.cn China 8645 58
Aladdin Scientific 		tp@aladdinsci.com United States 52923 58
Suzhou ARTK Medchem Co., Ltd. 		+86-512-68323658 +86-18168183658 sales1@artkmedchem.com China 39002 58
Cochemical Co. Ltd. 		+86-029-86115547 +86-17791676824 sales@cochemical.com China 3952 58
Amadis Chemical Company Limited 		571-89925085 sales@amadischem.com China 131957 58
PharmaBlock Sciences (Nanjing),Inc. 025-86918202 4000255188 sales@pharmablock.com China 5000 55
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42934 64
Supplier Advantage
Accela ChemBio Inc. 		58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		58
KARMEL TECHNOLOGY (HK) CO.,LIMITED 		58
CR Corporation Limited 		58
Aladdin Scientific 		58
Suzhou ARTK Medchem Co., Ltd. 		58
Cochemical Co. Ltd. 		58
Amadis Chemical Company Limited 		58
PharmaBlock Sciences (Nanjing),Inc. 55
Shanghai Hanhong Scientific Co.,Ltd. 64

2,5-DibroMo-4-nitropyridine Spectrum

2,5-DibroMo-4-nitropyridine(221241-31-2)1HNMR2,5-DibroMo-4-nitropyridine(221241-31-2)1HNMR2,5-DibroMo-4-nitropyridine(221241-31-2)13CNMR

221241-31-2(2,5-DibroMo-4-nitropyridine)Related Search:

2,5-DibroMo-4-nitropyridine
Pyridine, 2,5-dibromo-4-nitro- 221241-31-2