1-{2-bromo-5H,6H,7H-pyrazolo[3,2-b][1,3]oxazin-3-yl}propan-2-one CAS 1780471-30-8

Description

Compared with other compounds in its class, the molecular weight of 259.10 g/mol gives 1-{2-bromo-5H,6H,7H-pyrazolo[3,2-b][1,3]oxazin-3-yl}propan-2-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-{2-bromo-5H,6H,7H-pyrazolo[3,2-b][1,3]oxazin-3-yl}propan-2-one (CAS 1780471-30-8), molecular formula C9H11BrN2O2 and molecular weight 259.10 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 1-{2-bromo-5H,6H,7H-pyrazolo[3,2-b][1,3]oxazin-3-yl}propan-2-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 259.10 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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