Valdecoxib Impurity B

Name: Valdecoxib Impurity B
Brand: Vaqora Chemicals
SKU: VQ-023960

About Valdecoxib Impurity B

Valdecoxib Impurity B (CAS 1373038-60-8) is an impurity of Parecoxib offered by Vaqora Chemicals. With the molecular formula C32H25N3O6S2, it has a molar mass of 611.7 g/mol. It is also known as Valdecoxib Dimer or Parecoxib Benzenesulfonamide Dimer Impurity.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

As a characterised impurity of Parecoxib, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. 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, Valdecoxib Impurity B is dispatched with a Certificate of Analysis (COA) to destinations 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 Impurity B
Catalogue No.	VQ-023960
CAS Number	1373038-60-8
IUPAC name	4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)-N-[4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)phenyl]sulfonylbenzenesulfonamide
Molecular formula	C₃₂H₂₅N₃O₆S₂
Molecular weight	611.7 g/mol
Exact mass	611.1185
Grade	Reference Standard
HSN code	38229090
InChIKey	FDUYPVXQEAKTGG-UHFFFAOYSA-N
SMILES	CC1=C(C(=NO1)C2=CC=CC=C2)C3=CC=C(C=C3)S(=O)(=O)NS(=O)(=O)C4=CC=C(C=C4)C5=C(ON=C5C6=CC=CC=C6)C
PubChem CID	56955675

Physical properties
Physical form	Solid
LogP (XLogP3)	6.3
H-bond donors / acceptors	1 / 9
TPSA	149 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 Valdecoxib Impurity B?

The CAS Registry Number of Valdecoxib Impurity B is 1373038-60-8. It is also known as Valdecoxib Dimer, Parecoxib Benzenesulfonamide Dimer Impurity, Parecoxib Sodium Impurity A.

What is the molecular formula and molecular weight of Valdecoxib Impurity B?

Valdecoxib Impurity B has the molecular formula C32H25N3O6S2 and a molecular weight of 611.7 g/mol. Its IUPAC name is 4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)-N-[4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)phenyl]sulfonylbenzenesulfonamide.

What is Valdecoxib Impurity B used for?

Valdecoxib Impurity B 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 Impurity B can I order?

We supply Valdecoxib Impurity B 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 Impurity B?

Yes. Every lot of Valdecoxib Impurity B 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 Impurity B be shipped internationally?

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