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3-Methyl-2-pyrazolin-5-one, 98+%, Thermo Scientific Chemicals
Supplier: Thermo Scientific Chemicals A1025309
Description
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.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications3-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
| 3-Methyl-2-pyrazolin-5-one | |
| 220°C to 224°C | |
| 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 | |
| NHLAPJMCARJFOG-UHFFFAOYSA-N | |
| 3-methyl-1,4-dihydropyrazol-5-one | |
| 7920 | |
| ≥98% |
| 108-26-9 | |
| C4H6N2O | |
| 10 g | |
| Slightly soluble in ethanol. | |
| CC1=NNC(=O)C1 | |
| 98.105 | |
| 98.11 |
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
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
EINECSNumber : 203-565-3
RTECSNumber : UQ9451500
TSCA : Yes
Recommended Storage : Ambient temperatures
RUO – Research Use Only