1-[4-[(3,4-Dichlorophenyl)methoxy]phenyl]ethanone CAS 170916-55-9

Purity 97%+In StockPharmaceutical Standards
CAS No.170916-55-9
Molecular FormulaC15H12Cl2O2
Molecular Weight295.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-[4-[(3,4-Dichlorophenyl)methoxy]phenyl]ethanone CAS 170916-55-9 chemical structure

Description

1-[4-[(3,4-Dichlorophenyl)methoxy]phenyl]ethanone (C15H12Cl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

1-[4-[(3,4-Dichlorophenyl)methoxy]phenyl]ethanone (CAS 170916-55-9), molecular formula C15H12Cl2O2 and molecular weight 295.16 g/mol, is a CATO reference standard with documented purity and traceability.

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 FormulaC15H12Cl2O2
Molecular Weight295.16 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2005
Halogen ContentCl-containing

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