ChemicalBook > CAS DataBase List > 2,3-Diamino-4-bromopyridine
2,3-Diamino-4-bromopyridine
- Product Name
- 2,3-Diamino-4-bromopyridine
- CAS No.
- 1232431-75-2
- Chemical Name
- 2,3-Diamino-4-bromopyridine
- Synonyms
- 4-broMopyridine-2,3-diaMine;4-broMopyridine-2;4-BroMo-2,3-diaMinopyridine;2,3-Diamino-4-bromopyridine;4-Bromo-2,3-pyridinediamine;2,3-Pyridinediamine, 4-bromo-
- CBNumber
- CB52507089
- Molecular Formula
- C5H6BrN3
- Formula Weight
- 188.03
- MOL File
- 1232431-75-2.mol
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2,3-Diamino-4-bromopyridine Property
- Melting point:
- 154-155 °C
- Boiling point:
- 341.6±37.0 °C(Predicted)
- Density
- 1.818±0.06 g/cm3(Predicted)
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- form
- powder
- pka
- 5.68±0.47(Predicted)
- color
- Grey/purple/brown
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Safety
- HS Code
- 2933399990
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
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N-Bromosuccinimide Price
TRC
- Product number
- B416733
- Product name
- 4-Bromopyridine-2,3-diamine
- Packaging
- 100mg
- Price
- $65
- Updated
- 2021/12/16
TRC
- Product number
- B416733
- Product name
- 4-Bromopyridine-2,3-diamine
- Packaging
- 500mg
- Price
- $220
- Updated
- 2021/12/16
Frontier Specialty Chemicals
- Product number
- D13409
- Product name
- 2,3-Diamino-4-bromopyridine
- Purity
- 95%
- Packaging
- 1g
- Price
- $100
- Updated
- 2021/12/16
Frontier Specialty Chemicals
- Product number
- D13409
- Product name
- 2,3-Diamino-4-bromopyridine
- Purity
- 95%
- Packaging
- 5g
- Price
- $300
- Updated
- 2021/12/16
SynQuest Laboratories
- Product number
- 3H30-B-14
- Product name
- 4-Bromopyridine-2,3-diamine
- Purity
- 97.0%
- Packaging
- 250mg
- Price
- $390
- Updated
- 2021/12/16
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2,3-Diamino-4-bromopyridine Chemical Properties,Usage,Production
Synthesis
1305317-30-9
1232431-75-2
General procedure for the synthesis of 4-bromopyridine-2,3-diamine from 4-bromo-2-nitropyridin-3-amine: 4-bromo-2-nitropyridin-3-amine (1 g, 4.59 mmol) was dissolved in a solvent mixture of EtOH (20 mL) and water (5 mL) under stirring. To this solution, tin(IV) chloride (3.00 g, 11.52 mmol) was added slowly with the addition time controlled at 1 min. The reaction mixture was heated to 90°C and stirred at this temperature for 2 hours. After the reaction was completed, the mixture was cooled to room temperature and then carefully poured into saturated sodium bicarbonate solution (50 mL). The reaction mixture was extracted with dichloromethane (DCM, 2 x 100 mL). The organic phases were combined and washed sequentially with water (100 mL) and brine (100 mL). The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure to afford 4-bromopyridine-2,3-diamine (460 mg, 2.446 mmol, 53% yield) as a light brown solid. The resulting compound did not require further purification and could be used directly in the next step of the reaction.LCMS (ESI) m/z 187.9 [M+H]+ (calculated value C5H7BrN3, 187.91; measured value: 187.91).LC/MS retention time (Method C) tR=0.52 min.
References
[1] Synthesis, 2011, # 5, p. 794 - 806
[2] Patent: WO2017/59080, 2017, A1. Location in patent: Page/Page column 35; 111; 112
2,3-Diamino-4-bromopyridine Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2,3-Diamino-4-bromopyridine manufacturers
Shanghai kingmorn biotechnology Co.,LTD.
- Product
- 2,3-Diamino-4-bromopyridine 1232431-75-2
- Price
- US $0.00-0.00/g
- Min. Order
- 1g
- Purity
- 97%
- Supply Ability
- >10kg
- Release date
- 2021-07-15