3-Methyl-1-phenyl-2-pyrazoline-5-one

Name: 3-Methyl-1-phenyl-2-pyrazoline-5-one
Brand: Vaqora Chemicals
SKU: VQ-013029

About 3-Methyl-1-phenyl-2-pyrazoline-5-one

Listed under CAS 19735-89-8, 3-Methyl-1-phenyl-2-pyrazoline-5-one is a process intermediate or related compound of Edaravone available from Vaqora Chemicals. With the molecular formula C10H10N2O, it has a molar mass of 174.2 g/mol. Its systematic (IUPAC) name is 5-methyl-2-phenyl-1H-pyrazol-3-one. It is also known as 3-methyl-1-phenyl-3-pyrazolin-5-one or 1-Phenyl-3-methyl-5-pyrazolone.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

It is a process intermediate or related compound in the synthesis of Edaravone, useful for route development, impurity fate-and-purge studies and analytical method development. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer 3-Methyl-1-phenyl-2-pyrazoline-5-one in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide. This item is currently in stock for prompt dispatch.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Edaravone

View every impurity, metabolite and intermediate we list for Edaravone.

Edaravone impurities

Specifications & identifiers

Chemical identifiers
Product name	3-Methyl-1-phenyl-2-pyrazoline-5-one
Catalogue No.	VQ-013029
CAS Number	19735-89-8
Other CAS	75906-09-1, 15530-31-1, 15530-32-2, 15530-33-3
IUPAC name	5-methyl-2-phenyl-1H-pyrazol-3-one
Molecular formula	C₁₀H₁₀N₂O
Molecular weight	174.2 g/mol
Exact mass	174.0793
Grade	Reference Standard
HSN code	2933
InChIKey	KZQYIMCESJLPQH-UHFFFAOYSA-N
SMILES	CC1=CC(=O)N(N1)C2=CC=CC=C2
PubChem CID	70335

Physical properties
Physical form	Solid
LogP (XLogP3)	1.8
H-bond donors / acceptors	1 / 2
TPSA	32.3 Å²
Synonyms	3-methyl-1-phenyl-3-pyrazolin-5-one, 1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one, 2,3-Dihydro-5-methyl-2-phenyl-1H-pyrazol-3-one, 1-Phenyl-3-methyl-5-pyrazolone, 3-Methyl-1-phenylpyrazolone, 5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one, N-Demethylantipyrine, 3-Methyl-1-phenyl-1H-pyrazol-5-ol, 1H-Pyrazol-5-ol, 3-methyl-1-phenyl-, 5-methyl-2-phenyl-1H-pyrazol-3(2H)-one, 5-Methyl-2-phenyl-2H-pyrazol-3-ol, 5-methyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 3-Methyl-1-phenyl-2-pyrazoline-5-one?

The CAS Registry Number of 3-Methyl-1-phenyl-2-pyrazoline-5-one is 19735-89-8. It is also known as 3-methyl-1-phenyl-3-pyrazolin-5-one, 1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one, 2,3-Dihydro-5-methyl-2-phenyl-1H-pyrazol-3-one.

What is the molecular formula and molecular weight of 3-Methyl-1-phenyl-2-pyrazoline-5-one?

3-Methyl-1-phenyl-2-pyrazoline-5-one has the molecular formula C10H10N2O and a molecular weight of 174.2 g/mol. Its IUPAC name is 5-methyl-2-phenyl-1H-pyrazol-3-one.

What is 3-Methyl-1-phenyl-2-pyrazoline-5-one used for?

3-Methyl-1-phenyl-2-pyrazoline-5-one is supplied as a characterised reference material related to Edaravone. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 3-Methyl-1-phenyl-2-pyrazoline-5-one can I order?

We supply 3-Methyl-1-phenyl-2-pyrazoline-5-one in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 3-Methyl-1-phenyl-2-pyrazoline-5-one?

Yes. Every lot of 3-Methyl-1-phenyl-2-pyrazoline-5-one is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 3-Methyl-1-phenyl-2-pyrazoline-5-one be shipped internationally?

Yes. We export 3-Methyl-1-phenyl-2-pyrazoline-5-one worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.