Br-PEG7-Br CAS 177987-04-1

Description

Compared with other compounds in its class, the molecular weight of 496.23 g/mol gives Br-PEG7-Br distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Br-PEG7-Br (CAS 177987-04-1) is a high-purity analytical reference standard with the molecular formula C16H32Br2O7 and a molecular weight of 496.23 g/mol.

Based on its molecular formula C16H32Br2O7, Br-PEG7-Br contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 496.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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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