Carbonic acid, polymer with 1,3-dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one and 4,4'-(1-methylethylidene)bis[phenol] CAS 68958-03-2

Purity 97%+In StockPharmaceutical Standards
CAS No.68958-03-2
Molecular FormulaC22H19NO3
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Carbonic acid, polymer with 1,3-dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one and 4,4'-(1-methylethylidene)bis[phenol] CAS 68958-03-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Carbonic acid, polymer with 1,3-dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one and 4,4'-(1-methylethylidene)bis[phenol].

Carbonic acid, polymer with 1,3-dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one and 4,4'-(1-methylethylidene)bis[phenol] (CAS 68958-03-2) is a high-purity analytical reference standard with the molecular formula C22H19NO3C15H16O2CH2O3 and a molecular weight of 635.71 g/mol.

Carbonic acid, polymer with 1,3-dihydro-3,3-bis(4-hydroxy-3-methylphenyl)-2H-indol-2-one and 4,4'-(1-methylethylidene)bis[phenol] (C22H19NO3C15H16O2CH2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

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 FormulaC22H19NO3 C15H16O2 CH2O3
Molecular Weight635.71 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)21.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976
Nitrogen Atoms1

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