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2-Aminobenzimidazole

Product Name
2-Aminobenzimidazole
CAS No.
934-32-7
Chemical Name
2-Aminobenzimidazole
Synonyms
usafek-4037;USAF ek-4037;2-AMinobenziMi;BenziMidazoloniMide;2-aMinobenziMidazde;2-BENZIMIDAZOLAMINE;2-amino-benzimidazol;2-AMINOBENZIMIDAZOLE;AMINO-2-BENZIMIDAZOLE;2-BENZIMIDAZOLYLAMINE
CBNumber
CB6245188
Molecular Formula
C7H7N3
Formula Weight
133.15
MOL File
934-32-7.mol
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2-Aminobenzimidazole Property

Melting point:
226-230 °C (lit.)
Boiling point:
235.67°C (rough estimate)
Density 
1.1873 (rough estimate)
refractive index 
1.5341 (estimate)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
solubility 
<1g/l slightly soluble
pka
11.41±0.10(Predicted)
form 
Crystalline Powder, Crystals or Flakes
color 
Yellow to beige or light brown
Water Solubility 
Soluble in water (Slightly).
BRN 
116525
InChIKey
JWYUFVNJZUSCSM-UHFFFAOYSA-N
CAS DataBase Reference
934-32-7(CAS DataBase Reference)
NIST Chemistry Reference
2-Aminobenzimidazole(934-32-7)
EPA Substance Registry System
2-Aminobenzimidazole (934-32-7)
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Safety

Hazard Codes 
Xn
Risk Statements 
22-36/37/38-43
Safety Statements 
26-36/37/39-22
WGK Germany 
3
RTECS 
DD5775000
TSCA 
Yes
HS Code 
29339990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
171778
Product name
2-Aminobenzimidazole
Purity
97%
Packaging
5g
Price
$37.4
Updated
2024/03/01
Sigma-Aldrich
Product number
171778
Product name
2-Aminobenzimidazole
Purity
97%
Packaging
25g
Price
$110
Updated
2024/03/01
Sigma-Aldrich
Product number
31189
Product name
2-Aminobenzimidazole
Purity
PESTANAL?, analytical standard
Packaging
100MG
Price
$60.8
Updated
2022/05/15
TCI Chemical
Product number
A0850
Product name
2-Aminobenzimidazole
Purity
>98.0%(HPLC)(T)
Packaging
5g
Price
$36
Updated
2024/03/01
TCI Chemical
Product number
A0850
Product name
2-Aminobenzimidazole
Purity
>98.0%(HPLC)(T)
Packaging
25g
Price
$99
Updated
2024/03/01
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2-Aminobenzimidazole Chemical Properties,Usage,Production

Chemical Properties

Light yellow to cream or beige powder or flakes. N,N'-o-Phenyleneguanidine [934-32-7], 2-aminobenzimidazole, C7H7N3, Mr 133.15, mp 231 – 232 ℃(decomp.), obtained by cyclization of o-phenylenediamine with cyanogen chloride or cyanamide, is the nucleus for a number of compounds of economic interest.

Uses

2-Aminobenzimidazole was used in the hydrolysis of a choline carbonate. It was also used in the synthesis of imidazo[1,2-a]benzimidazoles.

Preparation

Synthesis of 2-aminobenzimidazole: Cyanogen bromide (3.5 g., 0.034 mole) was added in small portions, with shaking, to a suspension of o-phenylenediamine (4.2 g. , 0.34 mole) in water (40 ml), the exothermic reaction mixture was cooled to room temperature and it was stirred for 36hrs. The solution was filtered after standing overnight. Sodium hydroxide (1.4 g., 0.034 mole) in 30 ml of water was then added and the solution was evaporated. The solid thus obtained was filtered and recrystalized from water. Yield 85%, m.p. 228 - 230°C

Definition

ChEBI: 2-aminobenzimidazole is a member of the class of benzimidazoles that is benzimidazole in which the hydrogen at position 2 is replaced by an amino group. It has a role as a marine xenobiotic metabolite.

General Description

Plates (in water); white powder.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

2-Aminobenzimidazole neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition 2-Aminobenzimidazole emits toxic fumes of nitrogen oxides.

Fire Hazard

Flash point data for 2-Aminobenzimidazole are not available; however, 2-Aminobenzimidazole is probably combustible.

Safety Profile

Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. An experimental teratogen. Mutation data reported. When heated to decomposition it emits toxic NO,. See also AROUTIC AMINES.

2-Aminobenzimidazole Preparation Products And Raw materials

Raw materials

Preparation Products

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2-Aminobenzimidazole Suppliers

Supertex Sarex
Tel
--
Fax
--
Email
sarex@vsnl.com
Country
Canada
ProdList
81
Advantage
60
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View Lastest Price from 2-Aminobenzimidazole manufacturers

HebeiShuoshengImportandExportco.,Ltd
Product
2-Aminobenzimidazole 934-32-7
Price
US $6.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
2000KG/Month
Release date
2024-08-08
Hebei Longbang Technology Co., Ltd
Product
2-Aminobenzimidazole 934-32-7
Price
US $6.00/kg
Min. Order
1kg
Purity
More than 99%
Supply Ability
2000KG/Month
Release date
2024-04-28
Hebei Jingbo New Material Technology Co., Ltd
Product
2-Aminobenzimidazole 934-32-7
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000000
Release date
2023-12-21

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