1,4-Phenylenebis((4-bromophenyl)methanone) CAS 52497-29-7

Purity 97%+In StockPharmaceutical Standards
CAS No.52497-29-7
Molecular FormulaC20H12Br2O2
Molecular Weight444.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,4-Phenylenebis((4-bromophenyl)methanone) CAS 52497-29-7 chemical structure

Description

The occurrence of 1,4-Phenylenebis((4-bromophenyl)methanone) is closely related to a steroid core, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1,4-Phenylenebis((4-bromophenyl)methanone) (CAS 52497-29-7), molecular formula C20H12Br2O2 and molecular weight 444.12 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C20H12Br2O2, 1,4-Phenylenebis((4-bromophenyl)methanone) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 444.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 1,4-Phenylenebis((4-bromophenyl)methanone) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC20H12Br2O2
Molecular Weight444.12 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1971
Halogen ContentBr-containing

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Why CATO?