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API Impurities

Valdecoxib Impurity B

Reference StandardAvailable on request

Order Valdecoxib Impurity B (CAS 1373038-60-8) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-022975.

Pack sizes
Valdecoxib Impurity B chemical structure
CAS number1373038-60-8
FormulaC32H25N3O6S2
Molar mass611.7 g/mol
Physical formSolid
HS code38229090
InChIKeyFDUYPVXQEAKTGG-UHFFFAOYSA-N
IUPAC name4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)-N-[4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)phenyl]sulfonylbenzenesulfonamide

About Valdecoxib Impurity B

Analytical teams working on Parecoxib use Valdecoxib Impurity B as a qualified comparison standard. Identity at a glance (Reference Standard): CAS 1373038-60-8, formula C32H25N3O6S2 and molar mass 611.7 g/mol. It is handled as a solid.

Where it is used

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

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Parecoxib

See every impurity, metabolite and related compound we list for this API.

Parecoxib standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Valdecoxib Impurity B
Product nameValdecoxib Impurity B
Catalogue numberZX-022975
CAS number1373038-60-8
IUPAC name4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)-N-[4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)phenyl]sulfonylbenzenesulfonamide
Molecular formulaC32H25N3O6S2
Molar mass611.7 g/mol
Exact mass611.1185
GradeReference Standard
Physical formSolid
XLogP36.3
H-bond donors / acceptors1 / 9
Topological polar surface area149 Ų
HS code38229090
InChIKeyFDUYPVXQEAKTGG-UHFFFAOYSA-N
SMILESCC1=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 CID56955675
SynonymsValdecoxib Dimer, Parecoxib Benzenesulfonamide Dimer Impurity, Parecoxib Sodium Impurity A, Parecoxib Impurity 68

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Valdecoxib Impurity B
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Valdecoxib Impurity B

Which CAS number identifies Valdecoxib Impurity B?
Valdecoxib Impurity B is registered under CAS 1373038-60-8. You may also see it listed as Valdecoxib Dimer, Parecoxib Benzenesulfonamide Dimer Impurity, Parecoxib Sodium Impurity A. Our catalogue number for this item is ZX-022975.
What are the formula and molar mass of Valdecoxib Impurity B?
For Valdecoxib Impurity B, its formula is C32H25N3O6S2 and its molar mass is 611.7 g/mol. The systematic (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. InChIKey FDUYPVXQEAKTGG-UHFFFAOYSA-N lets you match it in any structure database.
How is Valdecoxib Impurity B used in pharmaceutical QC?
Valdecoxib Impurity B is a characterised reference material linked to Parecoxib. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Valdecoxib Impurity B?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Valdecoxib Impurity B?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Valdecoxib Impurity B to my country?
Yes. Valdecoxib Impurity B ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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