1-(4-Chlorobenzyl)-3-methyl-4-(3-(trifluoromethyl)benzoyl)-3,4-dihydroquinoxalin-2(1H)-one CAS 317822-34-7
| CAS No. | 317822-34-7 |
| Molecular Formula | C24H18ClF3N2O2 |
| Molecular Weight | 458.86 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.
1-(4-Chlorobenzyl)-3-methyl-4-(3-(trifluoromethyl)benzoyl)-3,4-dihydroquinoxalin-2(1H)-one (CAS 317822-34-7), molecular formula C24H18ClF3N2O2 and molecular weight 458.86 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C24H18ClF3N2O2, 1-(4-Chlorobenzyl)-3-methyl-4-(3-(trifluoromethyl)benzoyl)-3,4-dihydroquinoxalin-2(1H)-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 458.86 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 1-(4-Chlorobenzyl)-3-methyl-4-(3-(trifluoromethyl)benzoyl)-3,4-dihydroquinoxalin-2(1H)-one 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 | C24H18ClF3N2O2 |
| Molecular Weight | 458.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorobenzyl Standards
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Recommended Standards
- N-(3-Chloro-4-fluorophenyl)-6-nitro-7-(phenylsulfonyl)quinazolin-4-amine (CAS 945553-94-6)
- 1-[(3-Chlorophenyl)methyl]-3-methyl-4-[3-(trifluoromethyl)benzoyl]-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 317822-39-2)
- 4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}-N-(4-methoxyphenyl)benzene-1-sulfonamide (CAS 338775-28-3)
- 3-(3-((Dimethyl(vinyl)silyl)oxy)-1,1,5,5-tetramethyl-1,5-divinyltrisiloxan-3-yl)propyl methacrylate (CAS 17096-10-5)
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- 2-(4-Phenyl-2-thioxoimidazolidin-1-yl)acetic acid (CAS 90032-34-1)
- 4-((2,5-Dimethylphenoxy)methyl)thiophene-2-carbaldehyde (CAS 869950-32-3)
- 2-Isopropyl-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carboxylic acid (CAS 1521626-83-4)
- 3-amino-1-chloro-4-phenylbutan-2-one (CAS 25487-25-6)
- 1-Bromo-2-fluoro-4-nitro-5-(trifluoromethoxy)benzene (CAS 1805938-98-0)
- Ethyl 2-(3-(4-methoxyphenyl)oxetan-3-yl)acetate (CAS 1393584-85-4)
- 5-(Tert-butyl)-4-iodo-1H-pyrazol-3-amine (CAS 1355172-18-7)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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