Triphenylacetic acid CAS 595-91-5

Purity >95%In StockPharmaceutical Standards
CAS No.595-91-5
Molecular FormulaC20H16O2
Molecular Weight288.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Triphenylacetic acid CAS 595-91-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 288.34 g/mol gives Triphenylacetic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Triphenylacetic acid (CAS 595-91-5), a certified reference material (molecular formula C20H16O2, MW 288.34 g/mol) for analytical method development and quality control.

Based on its molecular formula C20H16O2, Triphenylacetic acid contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 288.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 FormulaC20H16O2
Molecular Weight288.34 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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