Di-tert-butyl(2',4',6'-triisopropyl-3,4'',6-trimethoxy-[1,1':3',1''-terphenyl]-2-yl)phosphine CAS 1668598-15-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1668598-15-9
Molecular FormulaC38H55O3P
Molecular Weight590.82 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Di-tert-butyl(2',4',6'-triisopropyl-3,4'',6-trimethoxy-[1,1':3',1''-terphenyl]-2-yl)phosphine CAS 1668598-15-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Di-tert-butyl(2',4',6'-triisopropyl-3,4'',6-trimethoxy-[1,1':3',1''-terphenyl]-2-yl)phosphine.

CATO supplies Di-tert-butyl(2',4',6'-triisopropyl-3,4'',6-trimethoxy-[1,1':3',1''-terphenyl]-2-yl)phosphine (CAS 1668598-15-9), a certified reference material (molecular formula C38H55O3P, MW 590.82 g/mol) for analytical method development and quality control.

Structurally, Di-tert-butyl(2',4',6'-triisopropyl-3,4'',6-trimethoxy-[1,1':3',1''-terphenyl]-2-yl)phosphine (C38H55O3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 590.82 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.

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 FormulaC38H55O3P
Molecular Weight590.82 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
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)11.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1993

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