4-Bromoimidazole

Modify Date: 2026-07-03 11:06:42

4-Bromoimidazole Structure
4-Bromoimidazole structure
Common Name 4-Bromoimidazole
CAS Number 2302-25-2 Molecular Weight 146.97
Density 1.9±0.1 g/cm3 Boiling Point 324.7±15.0 °C at 760 mmHg
Molecular Formula C3H3BrN2 Melting Point 131-135 °C(lit.)
MSDS Chinese USA Flash Point 150.2±20.4 °C
Symbol GHS06
GHS06
Signal Word Danger

 Use of 4-Bromoimidazole


4-Bromo-1H-imidazole is a biochemical reagent that can be used as a biological material or organic compound for life science related research.

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 5-bromo-1H-imidazole
Synonym More Synonyms

 4-Bromoimidazole Biological Activity

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description 4-Bromo-1H-imidazole is a biochemical reagent that can be used as a biological material or organic compound for life science related research.
Related Catalog
In Vitro 用作有机合成、农药、医药、染料等领域的重要原料中间体

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.9±0.1 g/cm3
Boiling Point 324.7±15.0 °C at 760 mmHg
Melting Point 131-135 °C(lit.)
Molecular Formula C3H3BrN2
Molecular Weight 146.97
Flash Point 150.2±20.4 °C
Exact Mass 145.947952
PSA 28.68000
LogP 0.97
Vapour Pressure 0.0±0.7 mmHg at 25°C
Index of Refraction 1.602
InChIKey FHZALEJIENDROK-UHFFFAOYSA-N
SMILES Brc1cnc[nH]1

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
NI3517450
CHEMICAL NAME :
1H-Imidazole, 4-bromo-
CAS REGISTRY NUMBER :
2302-25-2
LAST UPDATED :
199609
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C3-H3-Br-N2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
250 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Gastrointestinal - other changes Nutritional and Gross Metabolic - body temperature decrease
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 89,175,1987

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol GHS06
GHS06
Signal Word Danger
Hazard Statements H301-H315-H319-H335
Precautionary Statements P261-P301 + P310-P305 + P351 + P338
Personal Protective Equipment Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges
Hazard Codes T:Toxic;
Risk Phrases R25;R36/37/38
Safety Phrases S26-S36-S45-S37/39-S28A
RIDADR UN 2811 6.1/PG 3
WGK Germany 3
RTECS NI3517450
Hazard Class 6.1
HS Code 2933290090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~40%

4-Bromoimidazole Structure

4-Bromoimidazole

CAS#:2302-25-2

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Literature: Palmer, Brian D.; Denny, William A. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1989 , p. 95 - 99

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4-Bromoimidazole Structure

4-Bromoimidazole

CAS#:2302-25-2

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Literature: Journal of the Chemical Society, , vol. 121, p. 952

~20%

4-Bromoimidazole Structure

4-Bromoimidazole

CAS#:2302-25-2

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Literature: Advanced Synthesis and Catalysis, , vol. 355, # 2-3 p. 499 - 507

~%

4-Bromoimidazole Structure

4-Bromoimidazole

CAS#:2302-25-2

Learn More
Literature: Journal of the Chemical Society, , vol. 121, p. 952

~%

4-Bromoimidazole Structure

4-Bromoimidazole

CAS#:2302-25-2

Learn More
Literature: Journal of the Chemical Society, , vol. 121, p. 952

~%

4-Bromoimidazole Structure

4-Bromoimidazole

CAS#:2302-25-2

Learn More
Literature: Journal of the Chemical Society, , vol. 123, p. 627,628

~%

4-Bromoimidazole Structure

4-Bromoimidazole

CAS#:2302-25-2

Learn More
Literature: Journal of the Chemical Society, , vol. 121, p. 952

~%

4-Bromoimidazole Structure

4-Bromoimidazole

CAS#:2302-25-2

Learn More
Literature: Journal of the Chemical Society, , vol. 121, p. 952

~%

Detail Learn More
Literature: Journal of the Chemical Society, , vol. 121, p. 952

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2933290090
Summary 2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Articles3

More Articles

This table lists relevant public references with title, journal and publication metadata for this compound.

Crystal structure of 4-bromo-1H-imidazole, at 200 K, C3H3BrN2. Hosten EC and Betz R.

Zeitsch. für Kristall. 230(1) , 27-28, (2015)

Efficient synthesis of DNA containing the guanine oxidation-nitration product 5-guanidino-4-nitroimidazole: Generation by a postsynthetic substitution reaction. Neeley WL, et al.

Org. Lett. 6(2) , 245-248, (2004)

Palladium-catalyzed amination of unprotected five-membered heterocyclic bromides. Su M, et al.

Org. Lett. 16(3) , 832-835, (2014)

 4-BromoimidazoleBioassay

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This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Experimentally measured binding affinity data (Kd) for protein-ligand complexes deriv...
Source: Shanghai Institute of Organic Chemistry
Target: N/A
External Id: PDBbind-Kd for protein-ligand complexes
Name: Binding affinity to Enterobacteria phage T4 lysozyme L99A/M102H double mutant express...
Source: ChEMBL
Target: Endolysin
External Id: CHEMBL2330736
Name: NCI human tumor cell line growth inhibition assay. Data for the MCF7 Non-Small Cell L...
Source: DTP/NCI
Target: N/A
External Id: MCF7_OneDose
Name: NCI human tumor cell line growth inhibition assay. Data for the IGROV1 Non-Small Cell...
Source: DTP/NCI
Target: N/A
External Id: IGROV1_OneDose
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Imidazole,4-bromo
1H-Imidazole,4-bromo
4-Bromoimidazole
4-Bromo-1H-imidazol
MFCD00047021
3kqm
4-Bromo-1H-imidazole

 4-Bromoimidazole | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What are the downstream products of 5-bromo-1H-imidazole?
A: Related downstream products(CAS) of 5-bromo-1H-imidazole: 106848-38-8;132430-59-2;76-84-6;87941-55-7;51746-85-1;35512-29-9;6963-65-1;670-95-1;13189-13-4;25676-75-9.
Q: What English synonyms does 5-bromo-1H-imidazole have?
A: English synonyms of 5-bromo-1H-imidazole: Imidazole,4-bromo, 1H-Imidazole,4-bromo, 4-Bromoimidazole, 4-Bromo-1H-imidazol, MFCD00047021, 3kqm, 4-Bromo-1H-imidazole.
Q: What is the polar surface area (PSA) of 5-bromo-1H-imidazole?
A: Polar surface area (PSA) of 5-bromo-1H-imidazole is 28.68000.
Q: What is the boiling point of 5-bromo-1H-imidazole?
A: Boiling point of 5-bromo-1H-imidazole is 324.7±15.0 °C at 760 mmHg.
Q: What is the safety information for 5-bromo-1H-imidazole?
A: Safety information for 5-bromo-1H-imidazole: S26-S36-S45-S37/39-S28A.
Q: What is the SMILES notation of 5-bromo-1H-imidazole?
A: SMILES notation of 5-bromo-1H-imidazole is Brc1cnc[nH]1.
Q: What is the melting point of 5-bromo-1H-imidazole?
A: Melting point of 5-bromo-1H-imidazole is 131-135 °C(lit.).
Q: What is the InChIKey of 5-bromo-1H-imidazole?
A: InChIKey of 5-bromo-1H-imidazole is FHZALEJIENDROK-UHFFFAOYSA-N.
Q: What is the molecular weight of 5-bromo-1H-imidazole?
A: Molecular weight of 5-bromo-1H-imidazole is 146.97.
Q: What are the uses of 5-bromo-1H-imidazole?
A: Main uses of 5-bromo-1H-imidazole: 4-Bromo-1H-imidazole is a biochemical reagent that can be used as a biological material or organic compound for life science related research.

 4-Bromoimidazolefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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