3-(3-Benzylcyclohexa-2,4-dien-1-ylidene)isobenzofuran-1(3H)-one CAS 1801-25-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1801-25-8
Molecular FormulaC21H14O2
Molecular Weight298.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(3-Benzylcyclohexa-2,4-dien-1-ylidene)isobenzofuran-1(3H)-one CAS 1801-25-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 298.33 g/mol gives 3-(3-Benzylcyclohexa-2,4-dien-1-ylidene)isobenzofuran-1(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 3-(3-Benzylcyclohexa-2,4-dien-1-ylidene)isobenzofuran-1(3H)-one (CAS 1801-25-8), a certified reference material (molecular formula C21H14O2, MW 298.33 g/mol) for analytical method development and quality control.

Owing to a steroid core, a hydroxyl group, an ether linkage, 3-(3-Benzylcyclohexa-2,4-dien-1-ylidene)isobenzofuran-1(3H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 298.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

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 FormulaC21H14O2
Molecular Weight298.33 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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