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2,5-Dibromopyrazine

2,5-Dibromopyrazine structure

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

Molecular Weight:: 237.88

MDL Number:: MFCD08061601

MOL File:: 23229-26-7.mol

MSDS File:: SDS

Last updated:2023-04-23 13:52:06

Request For Quotation

2,5-Dibromopyrazine Properties

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
form	powder to crystal
pka	-4.28±0.10(Predicted)
color	White to Orange to Green
InChIKey	KIYKHEOWZLJZSB-UHFFFAOYSA-N
CAS DataBase Reference	23229-26-7

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302-H315-H319-H335
Precautionary statements	P261-P264-P270-P301+P312-P302+P352-P305+P351+P338
Hazard Codes	Xi,Xn
Risk Statements	22-36/37/38
Safety Statements	26-36/37/39
WGK Germany	3
HazardClass	IRRITANT
HS Code	29339900

2,5-Dibromopyrazine price More Price(41)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	796603	2,5-Dibromopyrazine 95% (GC)	23229-26-7	1G	$42.2	2023-06-20	Buy
TCI Chemical	D4323	2,5-Dibromopyrazine >98.0%(GC)	23229-26-7	1g	$21	2024-03-01	Buy
TCI Chemical	D4323	2,5-Dibromopyrazine >98.0%(GC)	23229-26-7	5g	$59	2024-03-01	Buy
TRC	D425995	2,5-Dibromopyrazine	23229-26-7	500mg	$65	2021-12-16	Buy
TRC	D425995	2,5-Dibromopyrazine	23229-26-7	100mg	$45	2021-12-16	Buy

Product number	Packaging	Price	Buy
796603	1G	$42.2	Buy
D4323	1g	$21	Buy
D4323	5g	$59	Buy
D425995	500mg	$65	Buy
D425995	100mg	$45	Buy

2,5-Dibromopyrazine Chemical Properties,Uses,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 synthesis

Synthesis of 2,5-Dibromopyrazine from 2-Amino-5-bromopyrazine

2,5-Dibromopyrazine Preparation Products And Raw materials

Raw materials

2-Amino-5-bromopyrazine Pyrazine 2-Bromopyrazine

Preparation Products

2-BroMo-5-cyclopropylpyrazine 2-BROMO-5-METHOXYPYRAZINE 1-PIPERAZINECARBOXYLIC ACID, 4-(5-BROMOPYRAZINYL)-, 1,1-DIMETHYLETHYL ESTER

2,5-Dibromopyrazine Suppliers

Global( 265)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29798	60
Beijing Cooperate Pharmaceutical Co.,Ltd	010-60279497	sales01@cooperate-pharm.com	CHINA	1811	55
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21666	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29888	58
Shanghai Arbor Chemical Co., Ltd.	021-60451682	act@arborchemical.com	CHINA	906	58
Nanjing Dolon Biotechnology Co.,Ltd.	18905173768	sales@dolonchem.com	CHINA	2972	58
Accela ChemBio Inc.	+1-858-6993322	info@accelachem.com	United States	19563	58
Zhengzhou HQ Material CO.,LTD.	+86-371-55919009 +8615225108189	sale1@hqmat.com	China	699	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22968	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39916	58

Supplier	Advantage
Capot Chemical Co.,Ltd.	60
Beijing Cooperate Pharmaceutical Co.,Ltd	55
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
Shanghai Arbor Chemical Co., Ltd.	58
Nanjing Dolon Biotechnology Co.,Ltd.	58
Accela ChemBio Inc.	58
Zhengzhou HQ Material CO.,LTD.	58
Hubei xin bonus chemical co. LTD	58
Chongqing Chemdad Co., Ltd	58

View Lastest Price from 2,5-Dibromopyrazine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2022-03-17	2,5-Dibromopyrazine 23229-26-7	US $1.10 / g	1g	99.00%	100 Tons	Dideu Industries Group Limited
2022-01-27	2,5-Dibromopyrazine 23229-26-7	US $0.00 / KG	1KG	97.4%	100 tons	Honest Joy Holdings Limited
2020-04-29	2,5-Dibromopyrazine 23229-26-7	US $0.00-0.00 / KG	1KG	99.0%+	800 tons	Shaanxi Dideu Medichem Co. Ltd

2,5-Dibromopyrazine
23229-26-7
US $1.10 / g
99.00%
Dideu Industries Group Limited

2,5-Dibromopyrazine
23229-26-7
US $0.00 / KG
97.4%
Honest Joy Holdings Limited

2,5-Dibromopyrazine
23229-26-7
US $0.00-0.00 / KG
99.0%+
Shaanxi Dideu Medichem Co. Ltd

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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> 2,5-Dibromopyrazine ISO 9001：2015 REACH 5-Dibromopyrazine 23229-26-7 Halides Pyrazines, Pyrimidines & Pyridazines Building Blocks Pyrazine