4-(1-Ethyl-4,5-diphenyl-1H-imidazol-2-yl)aniline CAS 918664-38-7
| CAS No. | 918664-38-7 |
| Molecular Formula | C23H21N3 |
| Molecular Weight | 339.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(1-Ethyl-4,5-diphenyl-1H-imidazol-2-yl)aniline (CAS 918664-38-7), molecular formula C23H21N3 and molecular weight 339.43 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 4-(1-Ethyl-4,5-diphenyl-1H-imidazol-2-yl)aniline is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 339.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 4-(1-Ethyl-4,5-diphenyl-1H-imidazol-2-yl)aniline 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 | C23H21N3 |
| Molecular Weight | 339.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- (E)-1,3-Diphenyl-4-(phenyldiazenyl)-1H-pyrazol-5-amine (CAS 100644-98-2)
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- N-(1,3-Diphenyl-1H-pyrazol-5-yl)benzamide (CAS 77746-90-8)
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- 1,3-Diphenyl-6-(trifluoromethyl)-1H-pyrazolo[4,3-b]pyridine (CAS 400089-20-5)
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Recommended Standards
- 3-tert-Butyl-4-(3-methoxybenzoyl)-6-methyl-3,4-dihydro-2H-1,4-benzoxazine (CAS 672951-43-8)
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- 3,4-Diamino-N-(4-((4-methylpiperazin-1-yl)methyl)phenyl)benzamide (CAS 936940-89-5)
- 4-Benzyl-3-ethoxy-1-phenylisoquinoline (CAS 63930-05-2)
- 6-chloro-1-(cyclopropylmethyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 2711002-61-6)
- 4-Chloro-7-fluoro-1H-indole-3-carbaldehyde (CAS 1227597-49-0)
- tert-butyl trans-4-(hydroxymethyl)cyclohexanecarboxylate (CAS 1943744-53-3)
- 1-(3,4-Dimethoxyphenyl)-8,9-dimethoxy-3-phenylpyrrolo[2,1-a]isoquinoline (CAS 886362-22-7)
- 2,4-Dioxo-1-propyl-1,2,3,4-tetrahydropyrimidine-5-sulfonyl chloride (CAS 1339172-38-1)
- Perampanel Impurity 34 (CAS CATO-C4X-243034)
- 1,3,4-Thiadiazol-2-ol (CAS 84352-66-9)
- Sodium phosphate binary dodecahydrate (CAS 10039-32-4)
- Naphthalene-1,7-dicarbonitrile (CAS 95596-45-5)
- Tirzepatide Impurity 44 (CAS CATO-C4X-324044)
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