Benzyl-PEG5-acid CAS 2514948-41-3

Description

Compared with other compounds in its class, the molecular weight of 356.41 g/mol gives Benzyl-PEG5-acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Benzyl-PEG5-acid (CAS 2514948-41-3) is a high-purity analytical reference standard with the molecular formula C18H28O7 and a molecular weight of 356.41 g/mol.

Based on its molecular formula C18H28O7, Benzyl-PEG5-acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 356.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

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