5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 3,3'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] CAS 72968-67-3

Purity 97%+In StockPharmaceutical Standards
CAS No.72968-67-3
Molecular FormulaC24H20N2O4S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 3,3'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] CAS 72968-67-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 824.86 g/mol gives 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 3,3'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 3,3'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] (CAS 72968-67-3), molecular formula C24H20N2O4SC12H12N2OC9H4O5 and molecular weight 824.86 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 3,3'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] (C24H20N2O4SC12H12N2OC9H4O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 30.0, corresponding to approximately 30 ring(s) or double-bond equivalent(s). With a molecular weight of 824.86 g/mol, it falls into the high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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

CATO manufactures 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 3,3'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] 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 FormulaC24H20N2O4S C12H12N2O C9H4O5
Molecular Weight824.86 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)30.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1977
Nitrogen Atoms4
Sulfur Atoms1

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