2,5-Difluoro-3-(naphthalen-2-yl)-5-phenyl-4H,5H,6H,7H-thieno[2,3-b]pyridine-4,6-dione CAS 1313504-21-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1313504-21-0
Molecular FormulaC23H13F2NO2S
Molecular Weight405.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,5-Difluoro-3-(naphthalen-2-yl)-5-phenyl-4H,5H,6H,7H-thieno[2,3-b]pyridine-4,6-dione CAS 1313504-21-0 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,5-Difluoro-3-(naphthalen-2-yl)-5-phenyl-4H,5H,6H,7H-thieno[2,3-b]pyridine-4,6-dione.

2,5-Difluoro-3-(naphthalen-2-yl)-5-phenyl-4H,5H,6H,7H-thieno[2,3-b]pyridine-4,6-dione (CAS 1313504-21-0) is a high-purity analytical reference standard with the molecular formula C23H13F2NO2S and a molecular weight of 405.42 g/mol.

Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, 2,5-Difluoro-3-(naphthalen-2-yl)-5-phenyl-4H,5H,6H,7H-thieno[2,3-b]pyridine-4,6-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 405.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

CATO manufactures 2,5-Difluoro-3-(naphthalen-2-yl)-5-phenyl-4H,5H,6H,7H-thieno[2,3-b]pyridine-4,6-dione 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.

Physical & Chemical Properties

Molecular FormulaC23H13F2NO2S
Molecular Weight405.42 g/mol
Purity97%+
StorageStore at room temperature, protect from light
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)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentF-containing
Nitrogen Atoms1
Sulfur Atoms1

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