triphenylarsine oxide CAS 1153-05-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1153-05-5
Molecular FormulaC18H33AsO
Molecular Weight340.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

triphenylarsine oxide CAS 1153-05-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 340.38 g/mol gives triphenylarsine oxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies triphenylarsine oxide (CAS 1153-05-5), a certified reference material (molecular formula C18H33AsO, MW 340.38 g/mol) for analytical method development and quality control.

The molecular framework of triphenylarsine oxide (C18H33AsO) is characterized by a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC18H33AsO
Molecular Weight340.38 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.5
CAS Registry Year (est.)1957

Recommended Standards

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