4-(2-Ethoxyethoxy)-3-oxo-butyric acid ethyl ester CAS 677326-77-1

Purity 97%+In StockPharmaceutical Standards
CAS No.677326-77-1
Molecular FormulaC10H18O5
Molecular Weight218.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(2-Ethoxyethoxy)-3-oxo-butyric acid ethyl ester CAS 677326-77-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 218.25 g/mol gives 4-(2-Ethoxyethoxy)-3-oxo-butyric acid ethyl ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(2-Ethoxyethoxy)-3-oxo-butyric acid ethyl ester (CAS 677326-77-1), molecular formula C10H18O5 and molecular weight 218.25 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-(2-Ethoxyethoxy)-3-oxo-butyric acid ethyl ester (C10H18O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 218.25 g/mol, it falls into the medium-molecular-weight range.

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 FormulaC10H18O5
Molecular Weight218.25 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1985

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