(E)-5-(But-2-enoyl)-4-methoxy-6-methyl-2H-pyran-2-one CAS 76868-97-8

Purity 97%+In StockPharmaceutical Standards
CAS No.76868-97-8
Molecular FormulaC11H12O4
Molecular Weight208.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-5-(But-2-enoyl)-4-methoxy-6-methyl-2H-pyran-2-one CAS 76868-97-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 208.21 g/mol gives (E)-5-(But-2-enoyl)-4-methoxy-6-methyl-2H-pyran-2-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(E)-5-(But-2-enoyl)-4-methoxy-6-methyl-2H-pyran-2-one (CAS 76868-97-8) is a high-purity analytical reference standard with the molecular formula C11H12O4 and a molecular weight of 208.21 g/mol.

(E)-5-(But-2-enoyl)-4-methoxy-6-methyl-2H-pyran-2-one (C11H12O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

CATO manufactures (E)-5-(But-2-enoyl)-4-methoxy-6-methyl-2H-pyran-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC11H12O4
Molecular Weight208.21 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978

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