3511-90-8 4-bromanyl-2,3,5,6-tetrakis(fluoranyl)pyridine 4-bromo-2,3,5,6-tetrafluoropyridine A822581 CAS 3511-90-8

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3511-90-8 4-bromanyl-2,3,5,6-tetrakis(fluoranyl)pyridine 4-bromo-2,3,5,6-tetrafluoropyridine A822581.

3511-90-8 4-bromanyl-2,3,5,6-tetrakis(fluoranyl)pyridine 4-bromo-2,3,5,6-tetrafluoropyridine A822581 (CAS 3511-90-8) is a high-purity analytical reference standard with the molecular formula C5H6BrF4N and a molecular weight of 236.01 g/mol.

Owing to fluorine/bromine substitution, 3511-90-8 4-bromanyl-2,3,5,6-tetrakis(fluoranyl)pyridine 4-bromo-2,3,5,6-tetrafluoropyridine A822581 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 236.01 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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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