2,5-DibroMo-4-nitropyridine
- Product Name
- 2,5-DibroMo-4-nitropyridine
- CAS No.
- 221241-31-2
- Chemical Name
- 2,5-DibroMo-4-nitropyridine
- Synonyms
- Pyridine, 2,5-dibromo-4-nitro-
- CBNumber
- CB32657504
- Molecular Formula
- C5H2Br2N2O2
- Formula Weight
- 281.89
- MOL File
- 221241-31-2.mol
2,5-DibroMo-4-nitropyridine Property
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P321Specific treatment (see … on this label).
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
N-Bromosuccinimide Price
- Product number
- FD165820
- Product name
- 2,5-Dibromo-4-nitropyridine
- Packaging
- 25mg
- Price
- $80
- Updated
- 2021/12/16
- Product number
- FD165820
- Product name
- 2,5-Dibromo-4-nitropyridine
- Packaging
- 50mg
- Price
- $125
- Updated
- 2021/12/16
- Product number
- FD165820
- Product name
- 2,5-Dibromo-4-nitropyridine
- Packaging
- 100mg
- Price
- $200
- Updated
- 2021/12/16
- Product number
- FD165820
- Product name
- 2,5-Dibromo-4-nitropyridine
- Packaging
- 250mg
- Price
- $400
- Updated
- 2021/12/16
- Product number
- HCH0362837
- Product name
- 2,5-DIBROMO-4-NITROPYRIDINE
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $498.05
- Updated
- 2021/12/16
2,5-DibroMo-4-nitropyridine Chemical Properties,Usage,Production
Synthesis
221241-25-4
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
Preparation Products
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