4-Hydroxyantipyrine Sulfate

Name: 4-Hydroxyantipyrine Sulfate
Brand: Vaqora Chemicals
SKU: VQ-033146

About 4-Hydroxyantipyrine Sulfate

Vaqora Chemicals supplies 4-Hydroxyantipyrine Sulfate, a metabolite or degradation product of Antipyrine registered under CAS number 81416-56-0. With the molecular formula C11H12N2O5S, it has a molar mass of 284.29 g/mol. Systematically, it is named (1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl) hydrogen sulfate. Alternative names: Oha-S.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Good laboratory practice and suitable PPE are recommended during handling.

It is used in metabolite identification, stability-indicating method development and impurity profiling of Antipyrine, as well as in QC testing and ANDA/DMF documentation. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 4-Hydroxyantipyrine Sulfate is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Antipyrine

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

Antipyrine impurities

Specifications & identifiers

Chemical identifiers
Product name	4-Hydroxyantipyrine Sulfate
Catalogue No.	VQ-033146
CAS Number	81416-56-0
IUPAC name	(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl) hydrogen sulfate
Molecular formula	C₁₁H₁₂N₂O₅S
Molecular weight	284.29 g/mol
Exact mass	284.0467
Grade	Reference Standard
HSN code	38229090
InChIKey	CTEXUEWYEUYLCH-UHFFFAOYSA-N
SMILES	CC1=C(C(=O)N(N1C)C2=CC=CC=C2)OS(=O)(=O)O
PubChem CID	71420980

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.1
H-bond donors / acceptors	1 / 6
TPSA	95.5 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 4-Hydroxyantipyrine Sulfate?

The CAS Registry Number of 4-Hydroxyantipyrine Sulfate is 81416-56-0. It is also known as 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl hydrogen sulfate, Oha-S, 3H-Pyrazol-3-one, 1,2-dihydro-1,5-dimethyl-2-phenyl-4-(sulfooxy)-.

What is the molecular formula and molecular weight of 4-Hydroxyantipyrine Sulfate?

4-Hydroxyantipyrine Sulfate has the molecular formula C11H12N2O5S and a molecular weight of 284.29 g/mol. Its IUPAC name is (1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl) hydrogen sulfate.

What is 4-Hydroxyantipyrine Sulfate used for?

4-Hydroxyantipyrine Sulfate 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 4-Hydroxyantipyrine Sulfate can I order?

We supply 4-Hydroxyantipyrine Sulfate 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 4-Hydroxyantipyrine Sulfate?

Yes. Every lot of 4-Hydroxyantipyrine Sulfate 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 4-Hydroxyantipyrine Sulfate be shipped internationally?

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