Ethyl 3-Bromo-5-nitrobenzoate CAS 690260-94-7

Description

Compared with other compounds in its class, the molecular weight of 274.07 g/mol gives Ethyl 3-Bromo-5-nitrobenzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ethyl 3-Bromo-5-nitrobenzoate (CAS 690260-94-7), molecular formula C9H8BrNO4 and molecular weight 274.07 g/mol, is a CATO reference standard with documented purity and traceability.

Ethyl 3-Bromo-5-nitrobenzoate (C9H8BrNO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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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