7-Methoxy-3-(thiophen-2-yl)isobenzofuran-1(3H)-one CAS 91362-88-8

Purity 97%+In StockPharmaceutical Standards
CAS No.91362-88-8
Molecular FormulaC13H10O3S
Molecular Weight246.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Methoxy-3-(thiophen-2-yl)isobenzofuran-1(3H)-one CAS 91362-88-8 chemical structure

Description

The occurrence of 7-Methoxy-3-(thiophen-2-yl)isobenzofuran-1(3H)-one is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

7-Methoxy-3-(thiophen-2-yl)isobenzofuran-1(3H)-one (CAS 91362-88-8), molecular formula C13H10O3S and molecular weight 246.28 g/mol, is a CATO reference standard with documented purity and traceability.

7-Methoxy-3-(thiophen-2-yl)isobenzofuran-1(3H)-one (C13H10O3S) contains a sulfone group, 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

As a certified reference material (CRM), 7-Methoxy-3-(thiophen-2-yl)isobenzofuran-1(3H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC13H10O3S
Molecular Weight246.28 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Sulfur Atoms1

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