Tris(2-ethylhexyl) Phosphite CAS 301-13-3

Purity >85%In StockPharmaceutical Standards
CAS No.301-13-3
Molecular FormulaC24H51O3P
Molecular Weight418.63 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tris(2-ethylhexyl) Phosphite CAS 301-13-3 chemical structure

Description

Tris(2-ethylhexyl) Phosphite (CAS 301-13-3) is a high-purity analytical reference standard with the molecular formula C24H51O3P and a molecular weight of 418.63 g/mol.

The molecular framework of Tris(2-ethylhexyl) Phosphite (C24H51O3P) is characterized by a phosphonate group, a carboxylic acid group, 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.

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.

As a certified reference material (CRM), Tris(2-ethylhexyl) Phosphite meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC24H51O3P
Molecular Weight418.63 g/mol
Purity>85%
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)-0.5
CAS Registry Year (est.)1957

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