1,3-Diethyl 2-(1,1-dioxo-2,3-dihydro-1λ6-thiophen-3-yl)propanedioate CAS 17235-98-2

Purity 97%+In StockPharmaceutical Standards
CAS No.17235-98-2
Molecular FormulaC11H16O6S
Molecular Weight276.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,3-Diethyl 2-(1,1-dioxo-2,3-dihydro-1λ6-thiophen-3-yl)propanedioate CAS 17235-98-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 276.31 g/mol gives 1,3-Diethyl 2-(1,1-dioxo-2,3-dihydro-1λ6-thiophen-3-yl)propanedioate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1,3-Diethyl 2-(1,1-dioxo-2,3-dihydro-1λ6-thiophen-3-yl)propanedioate (CAS 17235-98-2), molecular formula C11H16O6S and molecular weight 276.31 g/mol, is a CATO reference standard with documented purity and traceability.

1,3-Diethyl 2-(1,1-dioxo-2,3-dihydro-1λ6-thiophen-3-yl)propanedioate (C11H16O6S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC11H16O6S
Molecular Weight276.31 g/mol
Purity97%+
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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961
Sulfur Atoms1

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