2-Bromo-1H-imidazole CAS 16681-56-4

Purity 97%+In StockPharmaceutical Standards
CAS No.16681-56-4
Molecular FormulaC3H3BrN2
Molecular Weight146.97 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Bromo-1H-imidazole CAS 16681-56-4 chemical structure

Description

The occurrence of 2-Bromo-1H-imidazole is closely related to a nitrile group, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Bromo-1H-imidazole (CAS 16681-56-4) is a high-purity analytical reference standard with the molecular formula C3H3BrN2 and a molecular weight of 146.97 g/mol.

2-Bromo-1H-imidazole (C3H3BrN2) contains a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC3H3BrN2
Molecular Weight146.97 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1961
Halogen ContentBr-containing
Nitrogen Atoms2

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