2-Chloro-1,2-bis(4-methoxyphenyl)ethan-1-one CAS 71193-36-7

Purity 97%+In StockPharmaceutical Standards
CAS No.71193-36-7
Molecular FormulaC16H15ClO3
Molecular Weight290.74 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Chloro-1,2-bis(4-methoxyphenyl)ethan-1-one CAS 71193-36-7 chemical structure

Description

The occurrence of 2-Chloro-1,2-bis(4-methoxyphenyl)ethan-1-one is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Chloro-1,2-bis(4-methoxyphenyl)ethan-1-one (CAS 71193-36-7), molecular formula C16H15ClO3 and molecular weight 290.74 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C16H15ClO3, 2-Chloro-1,2-bis(4-methoxyphenyl)ethan-1-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 290.74 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 2-Chloro-1,2-bis(4-methoxyphenyl)ethan-1-one 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 FormulaC16H15ClO3
Molecular Weight290.74 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, 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.)1977
Halogen ContentCl-containing

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