Diethyl 2-methyl-3-oxosuccinate CAS 759-65-9

Purity >90%In StockPharmaceutical Standards
CAS No.759-65-9
Molecular FormulaC9H14O5
Molecular Weight202.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Diethyl 2-methyl-3-oxosuccinate CAS 759-65-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Diethyl 2-methyl-3-oxosuccinate.

CATO supplies Diethyl 2-methyl-3-oxosuccinate (CAS 759-65-9), a certified reference material (molecular formula C9H14O5, MW 202.20 g/mol) for analytical method development and quality control.

Based on its molecular formula C9H14O5, Diethyl 2-methyl-3-oxosuccinate contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 202.20 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.

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 FormulaC9H14O5
Molecular Weight202.20 g/mol
Purity>90%
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957

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