Piroxicam Impurity 16 CAS 1797884-12-8

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.1797884-12-8
Molecular FormulaC16H15N3O4S
Molecular Weight345.37 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Piroxicam Impurity 16 CAS 1797884-12-8 chemical structure

Description

CATO manufactures Piroxicam Impurity 16 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Piroxicam Impurity 16 (CAS 1797884-12-8) is a certified pharmaceutical impurity reference standard with the molecular formula C16H15N3O4S and a molecular weight of 345.37 g/mol.

Piroxicam Impurity 16 (C16H15N3O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

Physical & Chemical Properties

Molecular FormulaC16H15N3O4S
Molecular Weight345.37 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.)1994
Nitrogen Atoms3
Sulfur Atoms1

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