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4-Azabenzimidazole

4-Azabenzimidazole structure

CAS No.: 273-21-2

Chemical Name:: 4-Azabenzimidazole

Synonyms: 4H-Imidazo[4,5-b]pyridine;PBTFL44;1-deazapurine;3,4-diazaindole;4-AZABENZIMIDAZOLE;7-azabenzimidazole;TIMTEC-BB SBB004292;4-Aza-1H-benzimidazole;Imidazo(4,5-b)pyridine;4-AZABENZIMIDAZOLE 99%

CBNumber:: CB8165215

Molecular Formula:: C6H5N3

Molecular Weight:: 119.12

MDL Number:: MFCD00005579

MOL File:: 273-21-2.mol

MSDS File:: SDS

Last updated:2025-01-27 09:38:02

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4-Azabenzimidazole Properties

Melting point	148-151 °C (lit.)
Boiling point	140-150°C/0.1mm
Density	1.2058 (rough estimate)
refractive index	1.5589 (estimate)
Flash point	140-150°C/0.1mm
storage temp.	Inert atmosphere,Room Temperature
solubility	Soluble in dimethylformamide.
form	powder
pka	8.46±0.20(Predicted)
BRN	2600
CAS DataBase Reference	273-21-2(CAS DataBase Reference)
EPA Substance Registry System	1H-Imidazo[4,5-b]pyridine (273-21-2)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302-H315-H319-H335

Precautionary statements

P261-P305+P351+P338

Hazard Codes

Risk Statements

Safety Statements

24/25

WGK Germany

RTECS

NJ5108000

HS Code

2933998090

Toxicity

mouse,LD50,intraperitoneal,> 200mg/kg (200mg/kg),Journal of Medicinal Chemistry. Vol. 6, Pg. 480, 1963.

NFPA 704

	0
0		0

4-Azabenzimidazole price More Price(23)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	A93607	4-Azabenzimidazole 99%	273-21-2	1g	$89.4	2024-03-01	Buy
Sigma-Aldrich	A93607	4-Azabenzimidazole 99%	273-21-2	5g	$347	2023-06-20	Buy
Alfa Aesar	B25051	4-Azabenzimidazole, 99%	273-21-2	1g	$62.65	2024-03-01	Buy
Alfa Aesar	B25051	4-Azabenzimidazole, 99%	273-21-2	5g	$217.65	2024-03-01	Buy
Alfa Aesar	B25051	4-Azabenzimidazole, 99%	273-21-2	25g	$984.65	2024-03-01	Buy

Product number	Packaging	Price	Buy
A93607	1g	$89.4	Buy
A93607	5g	$347	Buy
B25051	1g	$62.65	Buy
B25051	5g	$217.65	Buy
B25051	25g	$984.65	Buy

4-Azabenzimidazole Chemical Properties,Uses,Production

Chemical Properties

yellow to light brown powder

Uses

4-Azabenzimidazole is used in the preparation of imidazo[4,5-b]pyridine 4-oxide. It is also used as a reagent to prepare benzoylmethyl-substituted azoles which are inhibitors of nitric oxide synthase with antioxidant properties.

Definition

ChEBI: The [4,5-b]-fused isomer of imidazopyridine.

4-Azabenzimidazole Preparation Products And Raw materials

Raw materials

Ethanol Formic acid 2,3-Diaminopyridine PETROLEUM ETHER

Preparation Products

3H-Imidazo[4,5-b]pyridine, 4-oxide

4-Azabenzimidazole Suppliers

Global( 149)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29730	60
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49732	58
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29808	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Henan Aochuang Chemical Co.,Ltd.	+86-0371-63689365 +8618638391208	sales@aochuangchem.com	China	9297	58
LEAPCHEM CO., LTD.	+86-852-30606658	market18@leapchem.com	China	43340	58
Xiamen Work-For-World Medicine Co.,Ltd.	+8615921822462	co@wfwmed.com	China	446	58
Aladdin Scientific		tp@aladdinsci.com	United States	57505	58

Supplier	Advantage
Capot Chemical Co.,Ltd.	60
ATK CHEMICAL COMPANY LIMITED	60
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
career henan chemical co	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
Henan Aochuang Chemical Co.,Ltd.	58
LEAPCHEM CO., LTD.	58
Xiamen Work-For-World Medicine Co.,Ltd.	58
Aladdin Scientific	58

View Lastest Price from 4-Azabenzimidazole manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2025-04-04	4-Azabenzimidazole 273-21-2	US $0.00-0.00 / KG	1KG	98%	1Ton	Henan Aochuang Chemical Co.,Ltd.
	2020-01-03	4-Azabenzimidazole 273-21-2	US $1.00 / KG	1KG	99%	10000KGS	Career Henan Chemical Co

4-Azabenzimidazole
273-21-2
US $0.00-0.00 / KG
98%
Henan Aochuang Chemical Co.,Ltd.

4-Azabenzimidazole
273-21-2
US $1.00 / KG
99%
Career Henan Chemical Co

4-Azabenzimidazole Spectrum

4-Azabenzimidazole(273-21-2)¹HNMR 4-Azabenzimidazole(273-21-2)IR 4-Azabenzimidazole(273-21-2)FT-IR 4-Azabenzimidazole(273-21-2)Raman

273-21-2(4-Azabenzimidazole)Related Search:

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1of4

1-deazapurine 3,4-diazaindole 7-azabenzimidazole 4-AZABENZIMIDAZOLE 1 H-IMIDAZO[4,5-B]PYRIDINE TIMTEC-BB SBB004292 pyrido(2,3-d)imidazole 4-AZABENZIMIDAZOLE 99% Imidazo(4,5-b)pyridine 4-Aza-1H-benzimidazole 4-Azabenzimidazole1H-Imidazo[4,5-b]pyridine 3H-Imidazo[4,5-b]pyridine, 4-Aza-1H-benzimidazole Imidazo/4,5-b/pyridine (4-Azabenzimidazole) and its derivatives PBTFL44 7aH-imidazo[4,5-b]pyridine 4H-Imidazo[4,5-b]pyridine 3H-Imidazo[4,5-b]pyridine (4-Azabenzimidazole) 273-21-2 Heterocyclic Building Blocks Benzimidazoles Building Blocks