N-[6-(4-Chlorophenyl)-2-oxo-2H-pyran-3-yl]thiophene-2-carboxamide CAS 338962-46-2

Purity 97%+In StockPharmaceutical Standards
CAS No.338962-46-2
Molecular FormulaC16H10ClNO3S
Molecular Weight331.77 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-[6-(4-Chlorophenyl)-2-oxo-2H-pyran-3-yl]thiophene-2-carboxamide CAS 338962-46-2 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

CATO supplies N-[6-(4-Chlorophenyl)-2-oxo-2H-pyran-3-yl]thiophene-2-carboxamide (CAS 338962-46-2), a certified reference material (molecular formula C16H10ClNO3S, MW 331.77 g/mol) for analytical method development and quality control.

N-[6-(4-Chlorophenyl)-2-oxo-2H-pyran-3-yl]thiophene-2-carboxamide (C16H10ClNO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC16H10ClNO3S
Molecular Weight331.77 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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