4-(5-Nitro-1H-imidazol-4-yl)aniline CAS 72798-75-5
| CAS No. | 72798-75-5 |
| Molecular Formula | C9H8N4O2 |
| Molecular Weight | 204.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(5-Nitro-1H-imidazol-4-yl)aniline is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(5-Nitro-1H-imidazol-4-yl)aniline (CAS 72798-75-5), molecular formula C9H8N4O2 and molecular weight 204.19 g/mol, is a CATO reference standard with documented purity and traceability.
4-(5-Nitro-1H-imidazol-4-yl)aniline (C9H8N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H8N4O2 |
| Molecular Weight | 204.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 4 |
Related Nitro Standards
- 5-(2-Nitro-phenyl)-2h-pyrazol-3-ylamine (CAS 1107523-90-9)
- 1-Benzyl-3-nitro-1H-1,2,4-triazole (CAS 136118-54-2)
- 2-(4-Nitro-1h-pyrazol-1-yl)aniline (CAS 62537-74-0)
- 2-Nitro-5-(1H-pyrazol-1-yl)aniline (CAS 934992-78-6)
- 3-(4-Methyl-3-nitro-phenyl)-1H-[1,2,4]triazole (CAS 845884-77-7)
- 3-(4-Nitro-1H-pyrazol-1-yl)aniline (CAS 62537-75-1)
- 4-Nitro-1-phenyl-1H-pyrazol-3-amine (CAS 701917-04-6)
- 5-Nitro-2-(1H-pyrrol-1-yl)phenol (CAS 106981-64-0)
Recommended Standards
- 4-(5-Methyl-1h-1,2,3,4-tetrazol-1-yl)benzoic acid (CAS 64170-57-6)
- 4-(Phenylamino)-1H-1,2,3-triazole-5-carboxylic acid (CAS 72693-60-8)
- 4-(4-Nitrophenyl)-1h-pyrazol-5-amine (CAS 92765-89-4)
- 4,4,4-trifluoro-3-phenylbutan-1-ol (CAS 65948-16-5)
- N,N-Diisopropyl-1H-imidazole-1-sulfonamide (CAS 1349718-95-1)
- 3-(2-Methyl-1h-1,3-benzodiazol-1-yl)propanoic acid hydrochloride (CAS 58555-22-9)
- N1,N1-dimethylbenzene-1,2-diamine (CAS 2836-03-5)
- 5-Amino-1-(2-fluorophenyl)-1H-pyrazole-4-carbohydrazide (CAS 948292-43-1)
- 2-(5-Nitrofuran-2-yl)-N-(triphenylphosphoranylidene)ethenamine (CAS 84839-43-0)
- 2-Amino-6-(2-chlorophenyl)-4-(4-chlorophenyl)nicotinonitrile (CAS 338794-11-9)
- 4-Cyano-3-(methylthio)benzoic acid (CAS 854696-88-1)
- 3-Propylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 1239840-11-9)
- Dihexyl(methyl)(phenyl)phosphoniumiodide (CAS 106707-17-9)
- Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 90880-35-6)
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