Tris(p-tolyl)phosphine CAS 1038-95-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1038-95-5
Molecular FormulaC21H39P
Molecular Weight322.51 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tris(p-tolyl)phosphine CAS 1038-95-5 chemical structure

Description

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.

CATO supplies Tris(p-tolyl)phosphine (CAS 1038-95-5), a certified reference material (molecular formula C21H39P, MW 322.51 g/mol) for analytical method development and quality control.

Structurally, Tris(p-tolyl)phosphine (C21H39P) contains organophosphorus functionality. The molecule exhibits a degree of unsaturation (DBE) of 2.5, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 322.51 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC21H39P
Molecular Weight322.51 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.5
CAS Registry Year (est.)1957

Recommended Standards

Why CATO?