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2,5-Dibromopyridine

2,5-Dibromopyridine structure

CAS No.: 624-28-2

Chemical Name:: 2,5-Dibromopyridine

Synonyms: Dibromopyridine;NSC 76597;5-DibroMopyridine;2,5-Dibrompyridin;2,5-dibromopyridin;2,5 dibromopyrdine;2,5-DIBROMOPYRIDINE;3,6-DibroMopyridine;2,5 Di bromo pyridne;Perampanel Impurity 9

CBNumber:: CB7283491

Molecular Formula:: C5H3Br2N

Molecular Weight:: 236.89

MDL Number:: MFCD00006221

MOL File:: 624-28-2.mol

MSDS File:: SDS

Last updated:2023-08-01 10:15:31

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2,5-Dibromopyridine Properties

Melting point	92-95 °C (lit.)
Boiling point	235 °C / 772mmHg
Density	2.0383 (rough estimate)
refractive index	1.5800 (estimate)
Flash point	62℃
storage temp.	Inert atmosphere,Room Temperature
solubility	Chloroform (Slightly), Methanol (Slightly)
pka	-1.57±0.10(Predicted)
form	Crystalline Powder
color	Almost white or light beige to brown
Water Solubility	insoluble
BRN	109099
InChI	InChI=1S/C5H3Br2N/c6-4-1-2-5(7)8-3-4/h1-3H
InChIKey	ZHXUWDPHUQHFOV-UHFFFAOYSA-N
SMILES	C1(Br)=NC=C(Br)C=C1
CAS DataBase Reference	624-28-2(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H335-H302+H312+H332-H315-H319

Precautionary statements

P280a-P304+P340-P305+P351+P338-P405-P501a-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501

Hazard Codes

Xi,Xn

Risk Statements

36/37/38-20/21/22

Safety Statements

26-37/39-36/37/39-36

RIDADR

UN2811

WGK Germany

HazardClass

IRRITANT

HS Code

29333999

NFPA 704

	0
2		0

2,5-Dibromopyridine price More Price(49)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	D43107	2,5-Dibromopyridine 98%	624-28-2	10g	$93.1	2023-06-20	Buy
TCI Chemical	D1217	2,5-Dibromopyridine >99.0%(GC)	624-28-2	5g	$24	2023-06-20	Buy
TCI Chemical	D1217	2,5-Dibromopyridine >99.0%(GC)	624-28-2	25g	$66	2023-06-20	Buy
Alfa Aesar	A10937	2,5-Dibromopyridine, 97%	624-28-2	10g	$78	2023-06-20	Buy
Alfa Aesar	A10937	2,5-Dibromopyridine, 97%	624-28-2	50g	$286	2023-06-20	Buy

Product number	Packaging	Price	Buy
D43107	10g	$93.1	Buy
D1217	5g	$24	Buy
D1217	25g	$66	Buy
A10937	10g	$78	Buy
A10937	50g	$286	Buy

2,5-Dibromopyridine Chemical Properties,Uses,Production

Chemical Properties

2,5-Dibromopyridine is an off-white crystalline solid. It is insoluble in water but soluble in strong polar organic solvents. It exhibits strong alkalinity.

Uses

2,5-Dibromopyridine (cas# 624-28-2) is a compound useful in organic synthesis.

Preparation

To synthesize 2,5-dibromopyridine, follow these steps:
Add 2-amino-5-bromopyridine (13.0 kg) into a water-cooled solution at 10 °C.
Slowly add 47% aqueous hydrogen bromide (37 L) to the mixture.
Introduce liquid bromine (11 L) into the mixture.
Maintain the reaction temperature below 10 °C.
Prepare a solution of NaNO2 (16.1 kg) and H2O (19 L) and add it dropwise to the mixture while keeping the temperature between 0-5 °C.
Stir the reaction mixture for 30 minutes.
Treat the mixture with a solution of NaOH (28.0 kg) in water (30 L) at a controlled rate below 20-25 °C.
Extract the reaction mixture with diethyl ether (3 × 40 L).
Dry the organic layer with anhydrous Na2SO4.
Remove the desiccant by filtration.
Evaporate the resulting filtrate under reduced pressure to dryness.
Suspend the residue in heptane (10 L).
Collect the target product molecule, 2,5-dibromopyridine, by filtration.
Synthesis method of 2,5-dibromopyridine

2,5-Dibromopyridine synthesis

Synthesis of 2,5-Dibromopyridine from 2-Hydroxy-5-bromopyridine

2,5-Dibromopyridine Preparation Products And Raw materials

Raw materials

2,3,6-Tribromopyridine 2,3,5-Tribromopyridine 2-Hydroxy-5-bromopyridine 1-Methyl-2-pyridone

Preparation Products

2-Bromo-5-iodopyridine 5-Bromopicolinic acid 5-BROMOPYRIDINE-2-CARBONYL CHLORIDE 6-Methoxynicotinaldehyde 2-(5-BROMO-2-PYRIDYLAZO)-5-(DIETHYLAMINO)PHENOL

2-Bromopyridine-5-boronic acid 5-(Trifluoromethyl)pyridine-2-carboxylic acid 5-BROMO-2-(PYRROLIDIN-1-YL)PYRIDINE 6-(1-PYRROLIDINYL)NICOTINALDEHYDE 5-Bromo-3-formylpyridine

2-Trifluoromethyl-5-bromopyridine 5-Bromo-2-iodopyridine Torezolid 2,5-Bis(trifluoromethyl)pyridine

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2,5-Dibromopyridine Suppliers

Global( 799)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
EAST STAR BIOTECH (SUZHOU) CO., LTD.	+8617706846989	marketing@eaststarbio.com	China	48	58
Suzhou Actchem Co., Ltd.	+8618762124502	actchem@qq.com	China	27	58
Nanjing New Thinking Chem Co.,Ltd	+8615896017193	nanjingxinsi@163.com	China	178	58
Frapp's ChemicalNFTZ Co., Ltd.	+86 (576) 8169-6106	sales@frappschem.com	China	885	50
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29811	60
Henan DaKen Chemical CO.,LTD.	+86-371-66670886	info@dakenchem.com	China	18729	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21975	55
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1807	55
Fluoropharm Co., Ltd.	+8613336034509	sales@fluoropharm.com	China	1290	60
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	31969	60

Supplier	Advantage
EAST STAR BIOTECH (SUZHOU) CO., LTD.	58
Suzhou Actchem Co., Ltd.	58
Nanjing New Thinking Chem Co.,Ltd	58
Frapp's ChemicalNFTZ Co., Ltd.	50
Capot Chemical Co.,Ltd.	60
Henan DaKen Chemical CO.,LTD.	58
Henan Tianfu Chemical Co.,Ltd.	55
Shanghai Time Chemicals CO., Ltd.	55
Fluoropharm Co., Ltd.	60
ATK CHEMICAL COMPANY LIMITED	60

View Lastest Price from 2,5-Dibromopyridine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2022-09-28	2,5-Dibromopyridine 624-28-2	US $0.00-0.00 / kg	1kg	98%	1Ton	Henan Aochuang Chemical Co.,Ltd.
2022-03-30	2,6-Dibromopyridine 624-28-2	US $10.00 / kg	1kg	0.99	10tons	Henan Guange Biotechnology Co. LTD
2022-02-25	2,5-Dibromopyridine 624-28-2	US $200.00 / Kg/Bag	1KG	99%	50kg	Hong Kong Tiansheng New Material Trading Co., Ltd

2,5-Dibromopyridine
624-28-2
US $0.00-0.00 / kg
98%
Henan Aochuang Chemical Co.,Ltd.

2,6-Dibromopyridine
624-28-2
US $10.00 / kg
0.99
Henan Guange Biotechnology Co. LTD

2,5-Dibromopyridine
624-28-2
US $200.00 / Kg/Bag
99%
Hong Kong Tiansheng New Material Trading Co., Ltd

2,5-Dibromopyridine Spectrum

2,5-Dibromopyridine(624-28-2)MS 2,5-Dibromopyridine(624-28-2)¹HNMR 2,5-Dibromopyridine(624-28-2)IR1 2,5-Dibromopyridine(624-28-2)IR2 2,5-Dibromopyridine(624-28-2)Raman

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2,5-DIBROMOPYRIDINE PYRIDINE, 2,5-DIBROMO- Dibromopyridine 2,5-Dibromopyridine, 97+% 2,5-dibromopyridin 2,5-DIBROMOPYRIDINE 2,5-DIBROMOPYRIDINE 2,5-Dibromo pyridine ,98% 2,5-DibroMopyridine, 97% 10GR 3,6-DibroMopyridine NSC 76597 5-DibroMopyridine 2, 5-2 broMide pyridine 2,5 Di bromo pyridne 2,5-Dibromopyridine > Perampanel Impurity 9 2,5-Dibromopyridine ISO 9001：2015 REACH 2,5-Dibrompyridin 2,5 dibromopyrdine Hot Sale?2, 5-Dibromopyridine CAS?624-28-2?with Best Price Pyronoprene Impurity 17 624-28-2 324-28-2 Building Blocks Pyridines Halogenated Heterocycles Heterocyclic Building Blocks Bromopyridines Halopyridines alkyl bromide Building Blocks C5 Chemical Synthesis Halogenated Heterocycles Heterocyclic Building Blocks Brominated heterocyclic series Aromatics Bases & Related Reagents Nucleotides Aromatics Compounds Bromopyridines Halopyridines Pyridine series C5Heterocyclic Building Blocks Halogenated Heterocycles Heterocyclic Building Blocks Nitrogen cyclic compounds blocks Bromides Pyridines pyridine derivative Pyridines, Pyrimidines, Purines and Pteredines Halides Pyridine Pyridines derivates bc0001 624-28-2