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ChemicalBook--->CAS DataBase List--->77992-44-0

77992-44-0

77992-44-0 Structure

77992-44-0 Structure
IdentificationMore
[Name]

5-BROMO-2-HYDRAZINOPYRIDINE
[CAS]

77992-44-0
[Synonyms]

5-BROMO-2-HYDRAZINOPYRIDINE
5-BROMO-2-HYDRAZINYLPYRIDINE
(5-BROMO-PYRIDIN-2-YL)-HYDRAZINE
2-Hydrazino-5-bromopyridine
5-Bromo-2-hydrazinopyridine 97%
N-(5-Bromo-2-pyridyl)hydrazine
[Molecular Formula]

C5H6BrN3
[MDL Number]

MFCD00513424
[Molecular Weight]

188.03
[MOL File]

77992-44-0.mol
Chemical PropertiesBack Directory
[Melting point ]

132.0 to 136.0 °C
[Boiling point ]

238.2±50.0 °C(Predicted)
[density ]

1.82±0.1 g/cm3(Predicted)
[storage temp. ]

Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
[form ]

powder to crystal
[pka]

8.97±0.70(Predicted)
[color ]

White to Light yellow to Light orange
[CAS DataBase Reference]

77992-44-0(CAS DataBase Reference)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

25-37/38-41
[Safety Statements ]

26-36-45
[RIDADR ]

2811
[WGK Germany ]

3
[Hazard Note ]

Irritant
[HazardClass ]

6.1
[PackingGroup ]

[HS Code ]

2933399990
Hazard InformationBack Directory
[Synthesis]

2-Chloro-5-bromopyridine (64 g, 333 mmol) was suspended in hydrazine monohydrate (250 mL), and the mixture was heated at 70° C. for 72 hours. The reaction mixture was then diluted with water (750 mL), and the resulting precipitate was filtered off and azeotrope, firstly with toluene (*2) and then dichloromethane (*2), to afford 5-Bromo-2-hydrazinopyridine as a pale brown solid in 83percent yield, 52 g.
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