1,3-Isobenzofurandione, polymer with 2-(hydroxymethyl)-2-methyl-1,3-propanediol, 4-(1,1-dimethylethyl)benzoate isononanoate CAS 67989-05-3

Purity 97%+In StockPharmaceutical Standards
CAS No.67989-05-3
Molecular FormulaC25H40O5
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,3-Isobenzofurandione, polymer with 2-(hydroxymethyl)-2-methyl-1,3-propanediol, 4-(1,1-dimethylethyl)benzoate isononanoate CAS 67989-05-3 chemical structure

Description

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.

1,3-Isobenzofurandione, polymer with 2-(hydroxymethyl)-2-methyl-1,3-propanediol, 4-(1,1-dimethylethyl)benzoate isononanoate (CAS 67989-05-3), molecular formula C25H40O5C8H4O3 and molecular weight 568.71 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 1,3-Isobenzofurandione, polymer with 2-(hydroxymethyl)-2-methyl-1,3-propanediol, 4-(1,1-dimethylethyl)benzoate isononanoate (C25H40O5C8H4O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

Physical & Chemical Properties

Molecular FormulaC25H40O5 C8H4O3
Molecular Weight568.71 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976

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