ChemicalBook > CAS DataBase List > 4-Bromo-1H-imidazole

4-Bromo-1H-imidazole

Product Name
4-Bromo-1H-imidazole
CAS No.
2302-25-2
Chemical Name
4-Bromo-1H-imidazole
Synonyms
5-BroMo-1H-iMidazole;4-BROMOIMIDAZOLE;4-bromo-imidazol;4-Bromine imidazole;4-bromo-1h-imidazol;4-BROMO-1H-IMIDAZOLE;4(5)-BROMO IMIDAZOLE;4(or5)-bromoimidazole;4(or5)-bromo-imidazol;4-Bromoimidazole 98+
CBNumber
CB4300919
Molecular Formula
C3H3BrN2
Formula Weight
146.97
MOL File
2302-25-2.mol
More
Less

4-Bromo-1H-imidazole Property

Melting point:
131-135 °C (lit.)
Boiling point:
324.7±15.0 °C(Predicted)
Density 
1.904±0.06 g/cm3(Predicted)
storage temp. 
2-8°C(protect from light)
solubility 
soluble in Dimethylformamide
pka
11.70±0.10(Predicted)
form 
Crystalline Flakes or Powder
color 
Colorless to beige
Water Solubility 
Slightly soluble in water.
InChI
InChI=1S/C3H3BrN2/c4-3-1-5-2-6-3/h1-2H,(H,5,6)
InChIKey
FHZALEJIENDROK-UHFFFAOYSA-N
SMILES
C1NC(Br)=CN=1
CAS DataBase Reference
2302-25-2(CAS DataBase Reference)
More
Less

Safety

Hazard Codes 
T
Risk Statements 
25-36/37/38
Safety Statements 
26-36-45-37/39-28A
RIDADR 
UN 2811 6.1/PG 3
WGK Germany 
3
RTECS 
NI3517450
Hazard Note 
Irritant
HazardClass 
6.1
PackingGroup 
Ⅲ
HS Code 
29339900
Toxicity
rat,LD50,oral,250mg/kg (250mg/kg),BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)GASTROINTESTINAL: OTHER CHANGES,Toxicology and Applied Pharmacology. Vol. 89, Pg. 175, 1987.
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

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.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

P501Dispose of contents/container to..…

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
478695
Product name
4-Bromo-1H-imidazole
Purity
97%
Packaging
1g
Price
$44.5
Updated
2023/01/07
TCI Chemical
Product number
B3280
Product name
4-Bromo-1H-imidazole
Purity
>98.0%(GC)(T)
Packaging
1g
Price
$21
Updated
2025/07/31
TCI Chemical
Product number
B3280
Product name
4-Bromo-1H-imidazole
Purity
>98.0%(GC)(T)
Packaging
5g
Price
$56
Updated
2025/07/31
TRC
Product number
B688783
Product name
4-Bromo-1H-imidazole
Packaging
250mg
Price
$55
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
HCH0022887
Product name
4-BROMO-1H-IMIDAZOLE
Purity
95.00%
Packaging
5G
Price
$816.24
Updated
2021/12/16
More
Less

4-Bromo-1H-imidazole Chemical Properties,Usage,Production

Chemical Properties

Colorless to beige crystalline flakes or powder

Uses

Employed as an important intermediate for raw material for organic synthesis, agrochemical, pharmaceutical and dyestuff field

General Description

4-Bromo-1H-imidazole (4-Br-1H-Im) is a heterocyclic building block containing an imidazole ring. It crystallizes in the monoclinic space group P21/c.

Synthesis

2034-22-2

2302-25-2

General procedure for the synthesis of 4-bromo-1H-imidazole from 2,4,5-tribromoimidazole: 2,4,5-tribromoimidazole (49 g, 161 mmol), sodium sulfite (101.5 g, 806 mmol), and water (500 mL) were added to a single-necked flask, and the reaction was stirred for 6 h at 110 °C. The reaction was carried out with the addition of ethyl acetate. After completion of the reaction, ethyl acetate was added for extraction, the organic layers were combined and dried with anhydrous sodium sulfate. The ethyl acetate was removed by concentration under reduced pressure to afford the target product 4-bromo-1H-imidazole (20.5 g, 89% yield).

References

[1] Patent: CN106256830, 2016, A. Location in patent: Paragraph 0044; 0052; 0053; 0054
[2] Journal of the Chemical Society, 1922, vol. 121, p. 952
[3] Journal of the American Chemical Society, 2001, vol. 123, # 49, p. 12147 - 12151

4-Bromo-1H-imidazole Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

4-Bromo-1H-imidazole Suppliers

Americas 1 Belgium 1 China 226 Europe 1 France 2 Germany 4 India 18 Japan 1 South Korea 1 Switzerland 2 Ukraine 2 United Kingdom 8 United States 33 Global 300
Changzhou Qingmu Biotechnology Co., Ltd
Tel
15995063722
Email
2259238820@qq.com
Country
China
ProdList
50
Advantage
58
Shanghai URChem Limited
Tel
+86-021-50890968，021-50891159 +86-18601776121
Fax
086-21-68416099 58604179
Email
danny@urchem.com
Country
China
ProdList
628
Advantage
58
Wuhan Roche Technology Development Co., Ltd.,
Tel
18986168071
Fax
027-88121016
Email
18986168071@163.com
Country
China
ProdList
93
Advantage
55
Creasyn Finechem(Tianjin) Co., Ltd.
Tel
022-83946278 13820503911
Fax
022-83945176
Email
sales@creasyn.com
Country
China
ProdList
958
Advantage
68
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006356688 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 2355568890
Fax
0086-21-50182339
Email
sales@demochem.com
Country
China
ProdList
2572
Advantage
57
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
Advantage
61
More
Less

View Lastest Price from 4-Bromo-1H-imidazole manufacturers

HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Product
4-Bromo-1H-imidazole 2302-25-2
Price
US $999.00-800.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000
Release date
2024-08-21
Henan Fengda Chemical Co., Ltd
Product
4-Bromoimidazole 2302-25-2
Price
US $8.00-0.80/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2024-01-22
Honest Joy Holdings Limited
Product
4-Bromo-1H-imidazole 2302-25-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99.4%
Supply Ability
100 tons
Release date
2022-01-26

2302-25-2, 4-Bromo-1H-imidazoleRelated Search:

Methimazole Levamisole Mebendazole Imidazolidine Imidazole Mizolastine 4-Bromo-1-indanone 4,5-Dibromo-1H-imidazole Bromine 5-BROMO-2-METHYL-4-NITRO-1H-IMIDAZOLE Midazolam 4,5-Dibromo-2-methylimidazole 2,4,5-Tribromoimidazole 2-Bromo-4-nitroimidazole 4-BROMO-1-METHYL-1H-IMIDAZOLE 2-(HYDROXYMETHYL)-5-BROMO-1H-BENZOIMIDAZOLE 8-Bromo-6-methylimidazo[1,2-a]pyridine-3-carbaldehyde 4-BROMO-1-TRITYL-1H-IMIDAZOLE

  • 4(or5)-bromo-imidazol
  • 4(or5)-bromoimidazole
  • 4-bromo-1h-imidazol
  • 4-BROMO-1H-IMIDAZOLE
  • 4-BROMOIMIDAZOLE
  • 4-bromo-imidazol
  • 4-Bromo-1H-imidazole,98%
  • 1H-Imidazole, 4-bromo-
  • 4-Bromine imidazole
  • 4-BroMo-1H-iMidazole, 97% 1GR
  • 1H-IMidazole, 5-broMo-
  • 4(5)-BROMO IMIDAZOLE
  • 5-BroMo-1H-iMidazole
  • 4-Bromo-1H-imidazole,97%
  • 4-Bromo-1H-imidazole &gt
  • 4-Bromo-1<i>H</i>-imidazole
  • 4-Bromoimidazole 98+
  • 2302-25-2
  • Building Blocks
  • Halogenated Heterocycles
  • Heterocyclic Building Blocks
  • Imidazoles
  • alkyl bromide
  • Building Blocks
  • Chemical Synthesis
  • Halogenated Heterocycles
  • Heterocyclic Building Blocks
  • Halogenated Heterocycles
  • Heterocyclic Building Blocks
  • ImidazolesBuilding Blocks
  • Imidazol&Benzimidazole
  • Imidaxoles
  • blocks
  • Bromides
  • Imidazoles