PEG5-bis-(Ethyl phosphonate) CAS 1446282-28-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1446282-28-5
Molecular FormulaC20H44O11P2
Molecular Weight522.50 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

PEG5-bis-(Ethyl phosphonate) CAS 1446282-28-5 chemical structure

Description

PEG5-bis-(Ethyl phosphonate) (CAS 1446282-28-5) is a high-purity analytical reference standard with the molecular formula C20H44O11P2 and a molecular weight of 522.50 g/mol.

Owing to a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, PEG5-bis-(Ethyl phosphonate) is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 522.50 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

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 FormulaC20H44O11P2
Molecular Weight522.50 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)-1.0
CAS Registry Year (est.)1992

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