Valdecoxib Sulfonic Acid

Name: Valdecoxib Sulfonic Acid
Brand: Vaqora Chemicals
SKU: VQ-023961

About Valdecoxib Sulfonic Acid

Valdecoxib Sulfonic Acid (CAS 181696-35-5) is an impurity of Parecoxib offered by Vaqora Chemicals. With the molecular formula C16H13NO4S, it has a molar mass of 315.3 g/mol. Its systematic (IUPAC) name is 4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)benzenesulfonic acid. Alternative names: Valdecoxib metabolite M8.

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.

This Parecoxib impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Valdecoxib Sulfonic Acid 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 Parecoxib

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

Parecoxib impurities

Specifications & identifiers

Chemical identifiers
Product name	Valdecoxib Sulfonic Acid
Catalogue No.	VQ-023961
CAS Number	181696-35-5
IUPAC name	4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)benzenesulfonic acid
Molecular formula	C₁₆H₁₃NO₄S
Molecular weight	315.3 g/mol
Exact mass	315.0565
Grade	Reference Standard
HSN code	38229090
InChIKey	LLWOSCPRJRUVST-UHFFFAOYSA-N
SMILES	CC1=C(C(=NO1)C2=CC=CC=C2)C3=CC=C(C=C3)S(=O)(=O)O
PubChem CID	11565904

Physical properties
Physical form	Solid
LogP (XLogP3)	2.8
H-bond donors / acceptors	1 / 5
TPSA	88.8 Å²
Synonyms	4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonic acid, Benzenesulfonic acid, 4-(5-methyl-3-phenyl-4-isoxazolyl)-, 4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulfonic Acid, Valdecoxib metabolite M8, 4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulphonic acid, 4-(5-Methyl-3-phenylisoxazol-4-yl)phenylsulfonic acid, 4-(5-Methyl-3-phenylisoxazol-4-yl)phenylsulphonic acid, Benzenesulphonic acid, 4-(5-methyl-3-phenyl-4-isoxazolyl)-, 4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonicacid, 4-(5-Methyl-3-phenyl-1,2-oxazol-4-yl)benzene-1-sulfonic acid, 4-(5-methyl-3-phenyl-isoxazol-4-yl)benzenesulfonic acid

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 Valdecoxib Sulfonic Acid?

The CAS Registry Number of Valdecoxib Sulfonic Acid is 181696-35-5. It is also known as 4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonic acid, Benzenesulfonic acid, 4-(5-methyl-3-phenyl-4-isoxazolyl)-, 4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulfonic Acid.

What is the molecular formula and molecular weight of Valdecoxib Sulfonic Acid?

Valdecoxib Sulfonic Acid has the molecular formula C16H13NO4S and a molecular weight of 315.3 g/mol. Its IUPAC name is 4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)benzenesulfonic acid.

What is Valdecoxib Sulfonic Acid used for?

Valdecoxib Sulfonic Acid is supplied as a characterised reference material related to Parecoxib. 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 Valdecoxib Sulfonic Acid can I order?

We supply Valdecoxib Sulfonic Acid 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 Valdecoxib Sulfonic Acid?

Yes. Every lot of Valdecoxib Sulfonic Acid 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 Valdecoxib Sulfonic Acid be shipped internationally?

Yes. We export Valdecoxib Sulfonic Acid worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.