ChemicalBook > CAS DataBase List > 2-BROMO-5-IODOPYRAZINE

2-BROMO-5-IODOPYRAZINE

Product Name: 2-BROMO-5-IODOPYRAZINE
CAS No.: 622392-04-5
Chemical Name: 2-BROMO-5-IODOPYRAZINE
Synonyms: 2-BROMO-5-IODOPYRAZINE;2-Iodo-5-bromo pyrazine;Pyrazine,2-broMo-5-iodo-;2-Bromo-5-iodopyrazine98%;2-Bromo-5-iodopyrazine 98%;2-Bromo-5-iodo-1,4-diazine;2-BROMO-5-IODOPYRAZINE ISO 9001：2015 REACH
CBNumber: CB4745088
Molecular Formula: C4H2BrIN2
Formula Weight: 284.88
MOL File: 622392-04-5.mol

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2-BROMO-5-IODOPYRAZINE Property

Melting point:: 95-97°C
Boiling point:: 273.7±35.0 °C(Predicted)
Density: 2.495±0.06 g/cm3(Predicted)
storage temp.: under inert gas (nitrogen or Argon) at 2–8 °C
form: powder
pka: -4.29±0.10(Predicted)
color: Beige

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26
HS Code: 2933998090

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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

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

Apolloscientific

Product number: OR2986
Product name: 2-Bromo-5-iodopyrazine
Purity: 98%
Packaging: 1g
Price: $40
Updated: 2021/12/16

SynQuest Laboratories

Product number: 3H32-S-X3
Product name: 2-Bromo-5-iodopyrazine
Purity: 98%
Packaging: 1g
Price: $44
Updated: 2021/12/16

Ark Pharm

Product number: AK-24107
Product name: 2-Bromo-5-iodopyrazine
Purity: 97%
Packaging: 5g
Price: $81
Updated: 2021/12/16

AK Scientific

Product number: Y9643
Product name: 2-Bromo-5-iodopyrazine
Packaging: 1g
Price: $104
Updated: 2021/12/16

Apolloscientific

Product number: OR2986
Product name: 2-Bromo-5-iodopyrazine
Purity: 98%
Packaging: 5g
Price: $125
Updated: 2021/12/16

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2-BROMO-5-IODOPYRAZINE Chemical Properties,Usage,Production

Synthesis

59489-71-3

622392-04-5

General procedure for the synthesis of 2-bromo-5-iodopyrazine from 2-amino-5-bromopyrazine: to a solution of DME (30 mL) containing 2-amino-5-bromopyrazine (1.25 g, 7.2 mmol) was added sequentially CsI (1.86 g, 7.2 mmol), iodine (0.92 g, 3.6 mmol), CuI (0.42 g, 2.2 mmol) and isoamyl nitrite (5.8 mL, 43.2 mmol). The reaction mixture was heated to 60 °C and gas was observed to escape. After 35 min of reaction, the mixture was cooled to room temperature, extracted with saturated aqueous NH4Cl solution (100 mL) and EtOAc (100 mL) and filtered through diatomaceous earth. The organic layer was separated, washed with 5% Na2S2O3 solution, dried over MgSO4 and concentrated to give the yellow solid product 2-bromo-5-iodopyrazine (1.50 g, 74% yield).GC-MS analysis showed molecular ion peaks m/z of 284 and 286 (M+).

References

[1] Patent: WO2004/811, 2003, A1. Location in patent: Page 197-198
[2] Chemistry - A European Journal, 2003, vol. 9, # 22, p. 5597 - 5604
[3] Patent: WO2008/24390, 2008, A2. Location in patent: Page/Page column 58
[4] Patent: US2008/45539, 2008, A1. Location in patent: Page/Page column 25
[5] Patent: WO2010/122151, 2010, A1. Location in patent: Page/Page column 61

2-BROMO-5-IODOPYRAZINE Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 2-BROMO-5-IODOPYRAZINE manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: 2-bromo-5-iodopyrazine 622392-04-5
Price: US $0.00-0.00/Kg
Min. Order: 1KG
Purity: 99.0%+
Supply Ability: 800 tons
Release date: 2020-04-29

Career Henan Chemical Co

Product: 2-BROMO-5-IODOPYRAZINE 622392-04-5
Price: US $1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 200kg
Release date: 2019-12-30

622392-04-5, 2-BROMO-5-IODOPYRAZINERelated Search:

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2-BROMO-5-IODOPYRAZINE ISO 9001：2015 REACH

622392-04-5

22392-04-5

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