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Alfa Aesar™ 3-Methyl-2-pyrazolin-5-one, 98+%

$50.18 - $184.72

Chemical Identifiers

CAS 108-26-9
Molecular Formula C4H6N2O
Formula Weight 98.11
MDL Number MFCD00020699
Synonym 2,4-Dihydro-5-methyl-3H-pyrazol-3-one
Chemical Name or Material 3-Methyl-2-pyrazolin-5-one
View More Specs


Products ${productFamilyLength}
Catalog Number Mfr. No. Quantity Price Quantity  
Catalog Number Mfr. No. Quantity Price Quantity  
AAA1025318 SDS Alfa Aesar™
A1025318
50g Each for $184.72
AAA1025309 SDS Alfa Aesar™
A1025309
10g Each for $50.18
AAA1025330 SDS Alfa Aesar™
A1025330
250g N/A N/A  
Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Specifications

Description

Applications
3-Methyl-2-pyrazolin-5-one is used in the preparation of spirocyclic [indole-3,4′-pyrano[2,3-c]pyrazole] by reacting with isatins and malonitrile in the presence of sodium bromide as electrolyte.

Solubility
Slightly soluble in ethanol.

Notes
Incompatible with oxidizing agents.
Description & Specifications

Chemical Identifiers

108-26-9
98.11
2,4-Dihydro-5-methyl-3H-pyrazol-3-one
C4H6N2O
MFCD00020699
3-Methyl-2-pyrazolin-5-one

Specifications

108-26-9
98.11
2,4-Dihydro-5-methyl-3H-pyrazol-3-one
50g
≥98%
C4H6N2O
MFCD00020699
220° to 224°C
3-Methyl-2-pyrazolin-5-one

Safety and Handling

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

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.

Warning

RTECSNumber : UQ9451500

TSCA : TSCA