4-Benzoyl-1-(3-chlorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one CAS 317822-16-5
| CAS No. | 317822-16-5 |
| Molecular Formula | C23H19ClN2O2 |
| Molecular Weight | 390.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Benzoyl-1-(3-chlorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 317822-16-5), molecular formula C23H19ClN2O2 and molecular weight 390.86 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Benzoyl-1-(3-chlorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (C23H19ClN2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 390.86 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a certified reference material (CRM), 4-Benzoyl-1-(3-chlorobenzyl)-3-methyl-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 | C23H19ClN2O2 |
| Molecular Weight | 390.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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; 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 | Cl-containing |
| Nitrogen Atoms | 2 |
Related Benzoyl Standards
- 4-Benzoyl-1-(2-chlorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 317822-22-3)
- 4-Benzoyl-1-[(4-chlorophenyl)methyl]-3-methyl-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 317822-13-2)
- 2-((3-Benzoyl-6-chloroimidazo[1,2-a]pyridin-8-yl)oxy)-1-phenylethanone (CAS 2006270-60-4)
- 4-Benzoyl-2-methyl-1-[(7-oxido-1h-pyrrolo[2,3-b]pyridin-3-yl)oxoacetyl]-piperazine (CAS 357262-90-9)
- Ethyl 2-benzoyl-4-(4-bromophenyl)-4-oxobutanoate (CAS 29113-49-3)
- 1-Benzoyl-4-[(4-benzoylpiperazin-1-yl)methyl]piperazine (CAS 39585-46-1)
- 1-Benzoyl-9b-(4-chlorophenyl)-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-one (CAS 477867-90-6)
- N-(2-Benzoyl-4-chlorophenyl)-2-{[(1S)-1-phenylethyl]amino}acetamide (CAS 1616506-46-7)
Recommended Standards
- 3-Chloro-N-(3-(5,7-dimethylbenzo[d]oxazol-2-yl)-2-methylphenyl)benzamide (CAS 590395-76-9)
- 4-Chloro-N-(3-(5,7-dimethylbenzo[d]oxazol-2-yl)-2-methylphenyl)benzamide (CAS 590395-74-7)
- 1,2,4,6,7,9-Hexachlorodibenzo-p-dioxin (CAS 39227-62-8)
- 5-((5-Chloro-2-ethoxybenzyl)amino)-2-morpholinobenzoic acid (CAS 765925-00-6)
- 3-(Naphthalen-1-yl)thiomorpholine (CAS 914349-66-9)
- 2,4-Dichloro-5-fluorobenzonitrile (CAS 128593-93-1)
- 2,8-Methanopyrido[3,4-b]pyrazine (CAS 102397-77-3)
- 3-(Azetidin-3-yl)-2,6-dichloropyridine (CAS 1260751-56-1)
- 1-(4-Chlorophenyl)-3-hydroxy-1,4,5,6-tetrahydro-2H-indol-2-one (CAS 52480-59-8)
- Clinofibrate Impurity 2 (CAS 30299-17-3)
- 5-(3-((2,4-Dichlorobenzyl)oxy)thiophen-2-yl)-1,2-dihydro-3H-1,2,4-triazole-3-thione (CAS 339008-21-8)
- 65792-32-7 (2-~13~C)Leucine DTXSID60514734 (CAS 65792-32-7)
- 1-(2-(Difluoromethoxy)phenyl)-2,2,2-trifluoroethan-1-ol (CAS 1251088-23-9)
- Peptide Impurity 27 (CAS 1350456-68-6)
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