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

Manufacturer:  Alfa Aesar™ A1025330

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Catalog No. AAA1025330



Description

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.
Specifications

Specifications

3-Methyl-2-pyrazolin-5-one
250g
C4H6N2O
3-methyl-2-pyrazolin-5-one, 3-methyl-5-pyrazolone, 3-methyl-1h-pyrazol-5 4h-one, 3h-pyrazol-3-one, 2,4-dihydro-5-methyl, 3-methyl-pyrazolon-5, 2-pyrazolin-5-one, 3-methyl, 3-methyl-4,5-dihydro-1h-pyrazol-5-one, 5-methyl-2,4-dihydro-3h-pyrazol-3-one, 2,4-dihydro-5-methyl-3h-pyrazol-3-one, 3-methyl-pyrazolon-5 german
CC1=NNC(=O)C1
98.105
98.11
220°C to 224°C
108-26-9
MFCD00020699
NHLAPJMCARJFOG-UHFFFAOYSA-N
3-methyl-1,4-dihydropyrazol-5-one
7920
≥98%

Chemical Identifiers

108-26-9
98.105
NHLAPJMCARJFOG-UHFFFAOYSA-N
7920
CC1=NNC(=O)C1
C4H6N2O
MFCD00020699
3-methyl-2-pyrazolin-5-one, 3-methyl-5-pyrazolone, 3-methyl-1h-pyrazol-5 4h-one, 3h-pyrazol-3-one, 2,4-dihydro-5-methyl, 3-methyl-pyrazolon-5, 2-pyrazolin-5-one, 3-methyl, 3-methyl-4,5-dihydro-1h-pyrazol-5-one, 5-methyl-2,4-dihydro-3h-pyrazol-3-one, 2,4-dihydro-5-methyl-3h-pyrazol-3-one, 3-methyl-pyrazolon-5 german
3-methyl-1,4-dihydropyrazol-5-one
Safety and Handling

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

SDS Documents