2,5-Dibromopyrazine

ChemicalBook > CAS DataBase List > 2,5-Dibromopyrazine

Product Name: 2,5-Dibromopyrazine
CAS No.: 23229-26-7
Chemical Name: 2,5-Dibromopyrazine
Synonyms: 5-Dibromopyrazine;2,5-DIBROMOPYRAZINE;PYRAZINE,2,5-DIBROMO;2,5-bisbromopyrazine;2,5-Dibromopyrazine>2,5-Dibromopyrazine 95% (GC);2,5-Dibromopyrazine ISO 9001：2015 REACH;3,6-Dibromopyrazine, 2,5-Dibromo-1,4-diazine
CBNumber: CB0701358
Molecular Formula: C4H2Br2N2
Formula Weight: 237.88
MOL File: 23229-26-7.mol

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2,5-Dibromopyrazine Property

Melting point:: 45.0 to 49.0 °C
Boiling point:: 234.0±35.0 °C(Predicted)
Density: 2.197
Flash point:: 95℃
storage temp.: Keep in dark place,Sealed in dry,Room Temperature
pka: -4.28±0.10(Predicted)
form: powder to crystal
color: White to Orange to Green
InChIKey: KIYKHEOWZLJZSB-UHFFFAOYSA-N
CAS DataBase Reference: 23229-26-7

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Safety

Hazard Codes: Xi,Xn
Risk Statements: 22-36/37/38
Safety Statements: 26-36/37/39
WGK Germany: 3
HazardClass: IRRITANT
HS Code: 29339900

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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.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 796603
Product name: 2,5-Dibromopyrazine
Purity: 95% (GC)
Packaging: 1G
Price: $42.2
Updated: 2023/06/20

TCI Chemical

Product number: D4323
Product name: 2,5-Dibromopyrazine
Purity: >98.0%(GC)
Packaging: 1g
Price: $21
Updated: 2024/03/01

TCI Chemical

Product number: D4323
Product name: 2,5-Dibromopyrazine
Purity: >98.0%(GC)
Packaging: 5g
Price: $59
Updated: 2024/03/01

TRC

Product number: D425995
Product name: 2,5-Dibromopyrazine
Packaging: 100mg
Price: $45
Updated: 2021/12/16

TRC

Product number: D425995
Product name: 2,5-Dibromopyrazine
Packaging: 500mg
Price: $65
Updated: 2021/12/16

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2,5-Dibromopyrazine Chemical Properties,Usage,Production

Synthesis

5-bromopyrazin-2-amine (3 g, 17.241 mmol) and bromine (8.2 g, 51.729 mmol) were added to aq. HBr solution at -15° C. Aq. solution of sodium nitrite (2.97 g, 43.0103 mmol) was then added to the mixture over a period of 1 h at -10° C. keeping the internal temperature below 5° C. during addition and stirred for 1 h at 0° C. Progress of reaction was monitored by TLC. After reaction completion reaction mass neutralised with 40percent NaOH solution and extracted with diethyl ether. The organic layer was dried over sodium sulphate and concentrated under reduced pressure (below 30° C.) to yield 2,5-Dibromopyrazine (1 g, 24.4percent) as brown oil.

2,5-Dibromopyrazine Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 2,5-Dibromopyrazine manufacturers

Honest Joy Holdings Limited

Product: 2,5-Dibromopyrazine 23229-26-7
Price: US $0.00/KG
Min. Order: 1KG
Purity: 97.4%
Supply Ability: 100 tons
Release date: 2022-01-26

Shaanxi Dideu Medichem Co. Ltd

Product: 2,5-Dibromopyrazine 23229-26-7
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99.0%+
Supply Ability: 800 tons
Release date: 2020-04-28

Career Henan Chemical Co

Product: 2,5-Dibromopyrazine 23229-26-7
Price: US $8.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 10tons
Release date: 2018-12-23

23229-26-7, 2,5-DibromopyrazineRelated Search:

2,5-Difluorobenzoic acid 2,5-Dibromopyridine Glipizide Sulfachoropyrazine sodium Pyrazinamide 2,5-Dimethylthiophene 2,5-Dimethoxytoluene 2,5-Dimethylfuran 2,5-DIBROMO-3-METHOXYPYRAZINE 2,6-Dibromopyrazine 2-AMINO-3,5-DIBROMOPYRAZINE,3,5-DIBROMOPYRAZINE-2-YLAMINE methyl 3,6-dibromopyrazine-2-carboxylate 2,3-DIBROMOPYRAZINE 3,6-dibromopyrazine-2-carbaldehyde 3,6-dibromopyrazin-2-amine 2,5-Dibromopyrazine 3,6-Dibromopyrazine

2,5-DIBROMOPYRAZINE

3,6-Dibromopyrazine, 2,5-Dibromo-1,4-diazine

2,5-Dibromopyrazine 95% (GC)

2,5-bisbromopyrazine

PYRAZINE,2,5-DIBROMO

2,5-Dibromopyrazine&gt

2,5-Dibromopyrazine ISO 9001：2015 REACH

5-Dibromopyrazine

23229-26-7

Halides

Pyrazines, Pyrimidines & Pyridazines

Building Blocks

Pyrazine