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Alfa Aesar™ 4-Bromo-1H-pyrazole, ≥98%

Chemical Identifiers

Chemical Name or Material 4-Bromo-1H-pyrazole
CAS 2075-45-8
Formula Weight 146.97
MDL Number MFCD00075602
Beilstein 106510
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAH6467336

 
alfa aesar™
H6467336
500g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.

AAH64673A1

 
alfa aesar™
H64673A1
1kg CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.

AAH6467314

 
alfa aesar™
H6467314
25g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Description & Specifications

Specifications

Melting Point 93° to 96°C (lit.)
Boiling Point 250° to 260°C (lit.)
Formula Weight 146.97
Health Hazard 2 GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Chemical Name or Material 4-Bromo-1H-pyrazole
Physical Form Solid
Assay ≥98%
Quantity 500g
MDL Number MFCD00075602
CAS 2075-45-8
Beilstein 106510
Health Hazard 1 Warning
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.
RTECS Number UQ6200000

Applications
4-Bromopyrazole may be used in the preparation of 4-bromo-1-(2-chloroethyl)-1H-pyrazole. It may be used as starting material in the synthesis of 1,4′-bipyrazoles. Also used in the synthesis of various pharmaceutical and biologically active compounds, including inhibitors. It is also shown to be one of the 4-substituted pyrazoles, being able to act as inhibitor of liver alcohol dehydrogenase.

Solubility
Slightly soluble in water.

Notes
Store in cool, dry place in tightly closed container. With adequate ventilation. Store away from oxidizing agent.

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.