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Alfa Aesar™ 2-Mercapto-5-methoxybenzimidazole, 99%

$32.89 - $537.72

Chemical Identifiers

Chemical Name or Material 2-Mercapto-5-methoxybenzimidazole
CAS 37052-78-1
Molecular Formula C8H8N2OS
Formula Weight 180.23g/mol
MDL Number MFCD00134581
Beilstein 3605123
Synonym 5-Methoxy-2-benzimidazolethiol; 5-Methoxy-2-mercaptobenzimidazole
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAB2057006

 
alfa aesar™
B20570-06
5g Each for $32.89

AAB2057014

 
alfa aesar™
B20570-14
25g Each for $142.04

AAB2057022

 
alfa aesar™
B20570-22
100g Each for $537.72
Description & Specifications

Specifications

Melting Point 255° to 259°C
Quantity 5g
Chemical Name or Material 2-Mercapto-5-methoxybenzimidazole
CAS 37052-78-1
Assay 99%
Molecular Formula C8H8N2OS
Formula Weight 180.23g/mol
MDL Number MFCD00134581
Beilstein 3605123
Synonym 5-Methoxy-2-benzimidazolethiol; 5-Methoxy-2-mercaptobenzimidazole
Health Hazard 1 Warning
Health Hazard 2 GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Health Hazard 3 GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

Applications
2-Mercapto-5-methoxybenzimidazole is used in the preparation of COX-2 inhibitors. It is also employed in the preparation of compounds such as 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfonyl]-1H-benzimidazole and 5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl-1-oxide)methyl]sulfonyl]-1H-benzimidazole. Further, it acts as a hetercocyclic building block and serves as an intermediate of drug omeprazole.

Solubility
Soluble in dimethyl sulfoxide. Slightly soluble in methanol. Insoluble in water.

Notes
Air sensitive. Store in a cool place. Incompatible with strong oxidizing agents, acids, bases and reducing agents.

Safety and Handling

Warning

GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.