Ethyl 5-(2-chloro-4,5-difluorophenyl)-5-oxopentanoate CAS 951887-23-3

Purity 97%+In StockPharmaceutical Standards
CAS No.951887-23-3
Molecular FormulaC13H13ClF2O3
Molecular Weight290.69 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5-(2-chloro-4,5-difluorophenyl)-5-oxopentanoate CAS 951887-23-3 chemical structure

Description

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 supplies Ethyl 5-(2-chloro-4,5-difluorophenyl)-5-oxopentanoate (CAS 951887-23-3), a certified reference material (molecular formula C13H13ClF2O3, MW 290.69 g/mol) for analytical method development and quality control.

Based on its molecular formula C13H13ClF2O3, Ethyl 5-(2-chloro-4,5-difluorophenyl)-5-oxopentanoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 290.69 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.

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 FormulaC13H13ClF2O3
Molecular Weight290.69 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentF/Cl-containing

Related Ethyl Standards

Recommended Standards

Why CATO?