Antipyrine-4-peroxide

About Antipyrine-4-peroxide

Antipyrine-4-peroxide is an impurity of Antipyrine carrying the CAS registry number 69124-27-2. Its molecular formula is C11H12N2O3 and its molecular weight is 220.22 g/mol. Systematically, it is named 4-hydroperoxy-1,5-dimethyl-2-phenylpyrazol-3-one. It is also known as Metamizole Antipyrine-4-Peroxide or Antipyrinyl-4-peroxide.

It is supplied 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.

Pharmaceutical QC and development laboratories use this impurity standard of Antipyrine to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

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

Industries

Related to Antipyrine

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

Antipyrine impurities

Specifications & identifiers

Chemical identifiers
Product name	Antipyrine-4-peroxide
Catalogue No.	VQ-043809
CAS Number	69124-27-2
IUPAC name	4-hydroperoxy-1,5-dimethyl-2-phenylpyrazol-3-one
Molecular formula	C₁₁H₁₂N₂O₃
Molecular weight	220.22 g/mol
Exact mass	220.0848
Grade	Reference Standard
HSN code	38229090
InChIKey	PRHVTMZSBSBTNG-UHFFFAOYSA-N
SMILES	CC1=C(C(=O)N(N1C)C2=CC=CC=C2)OO
PubChem CID	155200

Physical properties
Physical form	Solid
LogP (XLogP3)	0.9
H-bond donors / acceptors	1 / 4
TPSA	53 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 Antipyrine-4-peroxide?

The CAS Registry Number of Antipyrine-4-peroxide is 69124-27-2. It is also known as Metamizole Antipyrine-4-Peroxide, Antipyrinyl-4-peroxide, 3H-Pyrazol-3-one, 1,2-dihydro-4-hydroperoxy-1,5-dimethyl-2-phenyl-.

What is the molecular formula and molecular weight of Antipyrine-4-peroxide?

Antipyrine-4-peroxide has the molecular formula C11H12N2O3 and a molecular weight of 220.22 g/mol. Its IUPAC name is 4-hydroperoxy-1,5-dimethyl-2-phenylpyrazol-3-one.

What is Antipyrine-4-peroxide used for?

Antipyrine-4-peroxide is supplied as a characterised reference material related to Antipyrine. 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 Antipyrine-4-peroxide can I order?

We supply Antipyrine-4-peroxide 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 Antipyrine-4-peroxide?

Yes. Every lot of Antipyrine-4-peroxide 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 Antipyrine-4-peroxide be shipped internationally?

Yes. We export Antipyrine-4-peroxide worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.