Bis-PEG9-acid CAS 1268488-70-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1268488-70-5
Molecular FormulaC22H42O13
Molecular Weight514.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Bis-PEG9-acid CAS 1268488-70-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 514.56 g/mol gives Bis-PEG9-acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Bis-PEG9-acid (CAS 1268488-70-5), a certified reference material (molecular formula C22H42O13, MW 514.56 g/mol) for analytical method development and quality control.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Bis-PEG9-acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 514.56 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 FormulaC22H42O13
Molecular Weight514.56 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)2.0
CAS Registry Year (est.)1990

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