Methyl 2-(3-methylthiophen-2-yl)-2-oxoacetate CAS 155299-35-7

Purity 97%+In StockPharmaceutical Standards
CAS No.155299-35-7
Molecular FormulaC8H8O3S
Molecular Weight184.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 2-(3-methylthiophen-2-yl)-2-oxoacetate CAS 155299-35-7 chemical structure

Description

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.

Methyl 2-(3-methylthiophen-2-yl)-2-oxoacetate (CAS 155299-35-7), molecular formula C8H8O3S and molecular weight 184.21 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Methyl 2-(3-methylthiophen-2-yl)-2-oxoacetate (C8H8O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 184.21 g/mol, it falls into the medium-molecular-weight range. 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.

Physical & Chemical Properties

Molecular FormulaC8H8O3S
Molecular Weight184.21 g/mol
Purity97%+
StorageStore at 2-8°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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2001
Sulfur Atoms1

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