Dicyclohexyl[3′,4′,5′-trifluoro-3-(1-methylethoxy)-2′,6′-bis(1-methylethyl)[1,1′-biphenyl]-2-yl]phosphine CAS 2118959-57-0

Purity 97%+In StockPharmaceutical Standards
CAS No.2118959-57-0
Molecular FormulaC33H46F3OP
Molecular Weight546.69 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Dicyclohexyl[3′,4′,5′-trifluoro-3-(1-methylethoxy)-2′,6′-bis(1-methylethyl)[1,1′-biphenyl]-2-yl]phosphine CAS 2118959-57-0 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 Dicyclohexyl[3′,4′,5′-trifluoro-3-(1-methylethoxy)-2′,6′-bis(1-methylethyl)[1,1′-biphenyl]-2-yl]phosphine (CAS 2118959-57-0), a certified reference material (molecular formula C33H46F3OP, MW 546.69 g/mol) for analytical method development and quality control.

The molecular framework of Dicyclohexyl[3′,4′,5′-trifluoro-3-(1-methylethoxy)-2′,6′-bis(1-methylethyl)[1,1′-biphenyl]-2-yl]phosphine (C33H46F3OP) is characterized by organophosphorus functionality, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC33H46F3OP
Molecular Weight546.69 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, 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)9.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1997
Halogen ContentF-containing

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