Parecoxib Impurity 2 CAS 181695-72-7

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.181695-72-7
Molecular FormulaC16H14N2O3S
Molecular Weight314.36 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Parecoxib Impurity 2 CAS 181695-72-7 chemical structure

Description

Parecoxib Impurity 2 (CAS 181695-72-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H14N2O3S. Molecular weight: 314.36 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC16H14N2O3S
Molecular Weight314.36 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2008
Nitrogen Atoms2
Sulfur Atoms1

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