5-bromo-7-nitroindoline-2,3-dione CAS 49764-59-2

Purity 97%+In StockPharmaceutical Standards
CAS No.49764-59-2
Molecular FormulaC8H3BrN2O4
Molecular Weight271.02 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-bromo-7-nitroindoline-2,3-dione CAS 49764-59-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 271.02 g/mol gives 5-bromo-7-nitroindoline-2,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-bromo-7-nitroindoline-2,3-dione (CAS 49764-59-2) is a high-purity analytical reference standard with the molecular formula C8H3BrN2O4 and a molecular weight of 271.02 g/mol.

Based on its molecular formula C8H3BrN2O4, 5-bromo-7-nitroindoline-2,3-dione contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 271.02 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

Molecular FormulaC8H3BrN2O4
Molecular Weight271.02 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1971
Halogen ContentBr-containing
Nitrogen Atoms2

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