3-Methyl-1-phenyl-1H-pyrazole-4,5-dione

Name: 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione
Brand: Vaqora Chemicals
SKU: VQ-030358

About 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione

3-Methyl-1-phenyl-1H-pyrazole-4,5-dione (CAS 881-05-0) is an impurity of Edaravone offered by Vaqora Chemicals. The compound has the formula C10H8N2O2, corresponding to a molecular weight of 188.18 g/mol. Its systematic (IUPAC) name is 5-methyl-2-phenylpyrazole-3,4-dione. Common synonyms include 1H-Pyrazole-4,5-dione, 3-methyl-1-phenyl- and 5-methyl-2-phenyl-pyrazole-3,4-dione.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Edaravone, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

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-1H-pyrazole-4,5-dione
Catalogue No.	VQ-030358
CAS Number	881-05-0
IUPAC name	5-methyl-2-phenylpyrazole-3,4-dione
Molecular formula	C₁₀H₈N₂O₂
Molecular weight	188.18 g/mol
Exact mass	188.0586
Grade	Reference Standard
HSN code	38229090
InChIKey	WZHUUJNRNMODNQ-UHFFFAOYSA-N
SMILES	CC1=NN(C(=O)C1=O)C2=CC=CC=C2
PubChem CID	10103939

Physical properties
Physical form	Solid
LogP (XLogP3)	1.1
H-bond donors / acceptors	0 / 3
TPSA	49.7 Å²

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-1H-pyrazole-4,5-dione?

The CAS Registry Number of 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione is 881-05-0. It is also known as 1H-Pyrazole-4,5-dione, 3-methyl-1-phenyl-, 3-methyl-1-phenyl-4,5-dihydro-1H-pyrazole-4,5-dione, 5-methyl-2-phenyl-pyrazole-3,4-dione.

What is the molecular formula and molecular weight of 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione?

3-Methyl-1-phenyl-1H-pyrazole-4,5-dione has the molecular formula C10H8N2O2 and a molecular weight of 188.18 g/mol. Its IUPAC name is 5-methyl-2-phenylpyrazole-3,4-dione.

What is 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione used for?

3-Methyl-1-phenyl-1H-pyrazole-4,5-dione 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-1H-pyrazole-4,5-dione can I order?

We supply 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione?

Yes. Every lot of 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione 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-1H-pyrazole-4,5-dione be shipped internationally?

Yes. We export 3-Methyl-1-phenyl-1H-pyrazole-4,5-dione worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.