Methyl 2-ethyl-5-methyl-4-oxo-4,5-dihydrofuran-3-carboxylate CAS 175277-78-8

Purity 97%+In StockPharmaceutical Standards
CAS No.175277-78-8
Molecular FormulaC9H12O4
Molecular Weight184.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 2-ethyl-5-methyl-4-oxo-4,5-dihydrofuran-3-carboxylate CAS 175277-78-8 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO supplies Methyl 2-ethyl-5-methyl-4-oxo-4,5-dihydrofuran-3-carboxylate (CAS 175277-78-8), a certified reference material (molecular formula C9H12O4, MW 184.19 g/mol) for analytical method development and quality control.

Methyl 2-ethyl-5-methyl-4-oxo-4,5-dihydrofuran-3-carboxylate (C9H12O4) contains 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).

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 FormulaC9H12O4
Molecular Weight184.19 g/mol
AppearanceOff-white to pale yellow crystalline powder
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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2007

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