2',5'-Difluoro-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde CAS 1998167-76-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1998167-76-2
Molecular FormulaC20H12F2O2
Molecular Weight322.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2',5'-Difluoro-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde CAS 1998167-76-2 chemical structure

Description

2',5'-Difluoro-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde (CAS 1998167-76-2) is a high-purity analytical reference standard with the molecular formula C20H12F2O2 and a molecular weight of 322.30 g/mol.

Based on its molecular formula C20H12F2O2, 2',5'-Difluoro-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 322.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde 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 FormulaC20H12F2O2
Molecular Weight322.30 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, 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.)1996
Halogen ContentF-containing

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