4-[(1E)-3-(4-Chlorophenyl)-3-oxoprop-1-en-1-yl]phenyl 4-chlorobenzene-1-sulfonate CAS 331460-95-8

Purity 97%+In StockPharmaceutical Standards
CAS No.331460-95-8
Molecular FormulaC21H14Cl2O4S
Molecular Weight433.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-[(1E)-3-(4-Chlorophenyl)-3-oxoprop-1-en-1-yl]phenyl 4-chlorobenzene-1-sulfonate CAS 331460-95-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 433.30 g/mol gives 4-[(1E)-3-(4-Chlorophenyl)-3-oxoprop-1-en-1-yl]phenyl 4-chlorobenzene-1-sulfonate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-[(1E)-3-(4-Chlorophenyl)-3-oxoprop-1-en-1-yl]phenyl 4-chlorobenzene-1-sulfonate (CAS 331460-95-8) is a high-purity analytical reference standard with the molecular formula C21H14Cl2O4S and a molecular weight of 433.30 g/mol.

The molecular framework of 4-[(1E)-3-(4-Chlorophenyl)-3-oxoprop-1-en-1-yl]phenyl 4-chlorobenzene-1-sulfonate (C21H14Cl2O4S) is characterized by a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 4-[(1E)-3-(4-Chlorophenyl)-3-oxoprop-1-en-1-yl]phenyl 4-chlorobenzene-1-sulfonate 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 FormulaC21H14Cl2O4S
Molecular Weight433.30 g/mol
Purity97%+
StorageStore at room temperature, 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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Sulfur Atoms1

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