PEG4-phosphonic acid CAS 750541-89-0

Purity 97%+In StockPharmaceutical Standards
CAS No.750541-89-0
Molecular FormulaC9H21O7P
Molecular Weight272.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

PEG4-phosphonic acid CAS 750541-89-0 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 PEG4-phosphonic acid.

PEG4-phosphonic acid (CAS 750541-89-0) is a high-purity analytical reference standard with the molecular formula C9H21O7P and a molecular weight of 272.23 g/mol.

The molecular framework of PEG4-phosphonic acid (C9H21O7P) is characterized by a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

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 FormulaC9H21O7P
Molecular Weight272.23 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-0.5
CAS Registry Year (est.)1986

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