5-(3-Nitrophenyl)-1H-imidazole CAS 40511-41-9
| CAS No. | 40511-41-9 |
| Molecular Formula | C9H7N3O2 |
| Molecular Weight | 189.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 5-(3-Nitrophenyl)-1H-imidazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 189.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO supplies 5-(3-Nitrophenyl)-1H-imidazole (CAS 40511-41-9), a certified reference material (molecular formula C9H7N3O2, MW 189.17 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.
As a certified reference material (CRM), 5-(3-Nitrophenyl)-1H-imidazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H7N3O2 |
| Molecular Weight | 189.17 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.) | 1968 |
| Nitrogen Atoms | 3 |
Related Nitrophenyl Standards
- 4-(2-Nitrophenyl)-1H-pyrazole (CAS 1022318-67-7)
- 4-(4-Nitrophenyl)-1H-pyrazole (CAS 114474-26-9)
- 4-(3-Nitrophenyl)-1H-pyrazole (CAS 1190222-97-9)
- 2-(3-Nitrophenyl)imidazole (CAS 13682-18-3)
- 2-(4-Nitrophenyl)imidazole (CAS 1614-06-8)
- 1-(2-Nitrophenyl)-1h-imidazole (CAS 23309-16-2)
- 1-(2-Nitrophenyl)pyrazole (CAS 25688-17-9)
- 1-(3-Nitrophenyl)-1H-imidazole (CAS 23309-09-3)
Recommended Standards
- 5-(2-Nitrophenyl)-1H-imidazole (CAS 51746-89-5)
- 5-(Furan-2-yl)nicotinic acid (CAS 857283-84-2)
- 4-Phenylisoxazole-5-carboxylic acid (CAS 858490-03-6)
- 5-(Furan-2-yl)picolinic acid (CAS 930110-99-9)
- 6-Methoxy-1-tosyl-1H-indazol-5-ol (CAS 1881240-46-5)
- (5-Ethylisoxazol-3-yl)methanamine (CAS 893638-97-6)
- 4-Chloro-2-methyl-5-(phenylethynyl)pyridazin-3(2H)-one (CAS 407577-73-5)
- CCG 2046 (CAS 13017-69-1)
- (2-Methyl-5-(trifluoromethyl)furan-3-yl)methanol (CAS 1452479-55-8)
- Tetrabutylsilane (CAS 994-79-6)
- 7-chloro-2-methyl-3H,4H-pyrrolo[2,1-f][1,2,4]triazin-4-one (CAS 628734-14-5)
- 2-([1,1'-Biphenyl]-4-yl)-N-cyclopentylacetamide (CAS 851897-47-7)
- Buthiazide (CAS 2043-38-1)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
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