[A10253] CAS 108-26-9 | 3-Methyl-2-pyrazolin-5-one, 98+% | Alfa
0 ₩
Brand: Alfa Aesar
108-26-9 | C4H6N2O | 3-methyl-5-pyrazolone
Chemical Identifiers
CAS
108-26-9
Molecular Weight (g/mol)
98.11
Synonym
3-methyl-5-pyrazolone
SMILES
CC1=NNC(=O)C1
InChI Key
NHLAPJMCARJFOG-UHFFFAOYSA-N
Molecular Formula
C4H6N2O
IUPAC Name
3-methyl-4,5-dihydro-1H-pyrazol-5-one
Specifications
Assay (Non-aqueous acid-base Titration)
≥98.0 to ≤102.0%
Form
Crystals or powder or crystalline powder
Identification (FTIR)
Conforms
Appearance (Color)
White to cream to pale yellow
설명
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.
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.
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.
GHS Hazard and Precautionary Statements
Hazard Statements:Warning
GHS H StatementH315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: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.
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.
Risk & Safety
TSCA:YesRTECS Number:UQ9451500
경고:RUO – Research Use Only
CAS108-26-9FORMULAC4H6N2OEINECS203-565-3MDLMFCD00020699
| Pakage | 10g, 250g, 50G |
|---|---|
| brand | Alfa Aesar |
