Methyl 2-({4-[(1E)-{[(3-fluorophenyl)methoxy]imino}methyl]-1-methyl-3-phenyl-1H-pyrazol-5-yl}sulfanyl)benzoate CAS 321998-48-5

Purity 97%+In StockPharmaceutical Standards
CAS No.321998-48-5
Molecular FormulaC26H22FN3O3S
Molecular Weight475.53 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 2-({4-[(1E)-{[(3-fluorophenyl)methoxy]imino}methyl]-1-methyl-3-phenyl-1H-pyrazol-5-yl}sulfanyl)benzoate CAS 321998-48-5 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 Methyl 2-({4-[(1E)-{[(3-fluorophenyl)methoxy]imino}methyl]-1-methyl-3-phenyl-1H-pyrazol-5-yl}sulfanyl)benzoate.

Methyl 2-({4-[(1E)-{[(3-fluorophenyl)methoxy]imino}methyl]-1-methyl-3-phenyl-1H-pyrazol-5-yl}sulfanyl)benzoate (CAS 321998-48-5) is a high-purity analytical reference standard with the molecular formula C26H22FN3O3S and a molecular weight of 475.53 g/mol.

Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, Methyl 2-({4-[(1E)-{[(3-fluorophenyl)methoxy]imino}methyl]-1-methyl-3-phenyl-1H-pyrazol-5-yl}sulfanyl)benzoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 475.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC26H22FN3O3S
Molecular Weight475.53 g/mol
Purity97%+
StorageStore in a cool place (≤25°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; 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.)2025
Halogen ContentF-containing
Nitrogen Atoms3
Sulfur Atoms1

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