2-Bromo-4-nitroimidazole CAS 65902-59-2
| CAS No. | 65902-59-2 |
| Molecular Formula | C3H2BrN3O2 |
| Molecular Weight | 191.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-4-nitroimidazole (C3H2BrN3O2) contains an amide group, a carboxylic acid 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.
CATO supplies 2-Bromo-4-nitroimidazole (CAS 65902-59-2), a certified reference material (molecular formula C3H2BrN3O2, MW 191.97 g/mol) for analytical method development and quality control.
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 Formula | C3H2BrN3O2 |
| Molecular Weight | 191.97 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 3-Bromo-5-nitropyrazole (CAS 1208314-00-4)
- 5-Bromo-1,3-oxazole-4-carboxylic acid (CAS 1240611-09-9)
- 2-Bromo-5-nitrofuran (CAS 823-73-4)
- 3-Bromo-4-nitropyrazole (CAS 784193-37-9)
- 4-bromo-1H-1,2,3-triazole-5-carboxylic acid (CAS 295345-31-2)
- 4-Bromo-3-isoxazolecarboxylic acid (CAS 893638-53-4)
- 4-Bromo-3-nitropyrazole (CAS 89717-64-6)
- 4-Bromo-5-isoxazolecarboxylic acid (CAS 893638-85-2)
Recommended Standards
- 5-Bromooxazole-2-carboxylic acid (CAS 1935087-98-1)
- 2-Bromooxazole-5-carboxylic acid (CAS 1373253-25-8)
- Pyrophosphoric (CAS 1257293-46-1)
- 3-Bromoisoxazole-5-carboxylic Acid (CAS 6567-35-7)
- Diethyl 2-(((3-chloro-2-methylphenyl)amino)methylene)malonate (CAS 58666-10-7)
- 1-(4-Bromo-2-nitrophenyl)guanidine (CAS 119707-95-8)
- 2-(6-Tetramethylrhodamine)carboxylic Acid N-Hydroxysuccinimide Ester (CAS 1027512-41-9)
- 8-methoxyimidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1159827-69-6)
- Ethyl hexahydropyrrolo[3,4-c]pyrrole-2(1h)-carboxylate (CAS 1461868-98-3)
- n-(1-(5-Methylthiophen-2-yl)ethyl)cyclopropanamine (CAS 1016704-84-9)
- (2E)-3-(1,5-Dimethyl-1H-pyrazol-4-yl)-acryloyl chloride 4631AE 512809-22-2 C8H9ClN2O (CAS 512809-22-2)
- 4-Bromo-3-ethynylpyridine (CAS 1196146-05-0)
- (2R)-1-tert-butoxycarbonyl-4,4-difluoro-pyrrolidine-2-carboxylic acid (CAS 536747-87-2)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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