1,4-Benzenedicarboxylic acid, polymer with 1,1'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[2-propanol] CAS 168456-95-9

Purity 97%+In StockPharmaceutical Standards
CAS No.168456-95-9
Molecular FormulaC21H28O4
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,4-Benzenedicarboxylic acid, polymer with 1,1'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[2-propanol] CAS 168456-95-9 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 1,4-Benzenedicarboxylic acid, polymer with 1,1'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[2-propanol].

CATO supplies 1,4-Benzenedicarboxylic acid, polymer with 1,1'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[2-propanol] (CAS 168456-95-9), a certified reference material (molecular formula C21H28O4C8H6O4, MW 510.58 g/mol) for analytical method development and quality control.

Based on its molecular formula C21H28O4C8H6O4, 1,4-Benzenedicarboxylic acid, polymer with 1,1'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis[2-propanol] contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 510.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

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 FormulaC21H28O4 C8H6O4
Molecular Weight510.58 g/mol
AppearancePale yellow to yellow crystalline powder
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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2005

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