2-(((4-Fluorophenyl)thio)methyl)-5-methoxy-4H-pyran-4-one CAS 1949816-49-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1949816-49-2
Molecular FormulaC13H11FO3S
Molecular Weight266.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(((4-Fluorophenyl)thio)methyl)-5-methoxy-4H-pyran-4-one CAS 1949816-49-2 chemical structure

Description

Structurally, 2-(((4-Fluorophenyl)thio)methyl)-5-methoxy-4H-pyran-4-one (C13H11FO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 266.29 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

2-(((4-Fluorophenyl)thio)methyl)-5-methoxy-4H-pyran-4-one (CAS 1949816-49-2) is a high-purity analytical reference standard with the molecular formula C13H11FO3S and a molecular weight of 266.29 g/mol.

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.

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.

Physical & Chemical Properties

Molecular FormulaC13H11FO3S
Molecular Weight266.29 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Halogen ContentF-containing
Sulfur Atoms1

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