4-(2-Methylbenzoyl)-3,4-dihydroquinoxalin-2(1H)-one CAS 831216-58-1
| CAS No. | 831216-58-1 |
| Molecular Formula | C16H14N2O2 |
| Molecular Weight | 266.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H14N2O2, 4-(2-Methylbenzoyl)-3,4-dihydroquinoxalin-2(1H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 266.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 4-(2-Methylbenzoyl)-3,4-dihydroquinoxalin-2(1H)-one (CAS 831216-58-1), a certified reference material (molecular formula C16H14N2O2, MW 266.29 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(2-Methylbenzoyl)-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 | C16H14N2O2 |
| Molecular Weight | 266.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Methylbenzoyl Standards
- 5-(4-Methylbenzoyl)isobenzofuran-1,3-dione (CAS 192331-05-8)
- 1242887-47-3 {[1-(4-Methylbenzoyl)-2,3-dihydro-1H-indol-6-yl]methyl}amine MFCD15732181 (CAS 1242887-47-3)
- (E)-3-(6-(4-Methylbenzoyl)pyridin-2-yl)acrylic Acid (CAS 94094-27-6)
- 3-Methyl-4-(4-methylbenzoyl)-3,4-dihydro-2H-1,4-benzoxazine (CAS 338747-54-9)
- 2-(4-Methylbenzoyl)isoindoline-1,3-dione (CAS 104496-89-1)
- (2-Methylbenzoyl)methionine (CAS 65054-80-0)
- 2-(4-Methylbenzoyl)-1H-indene-1,3(2H)-dione (CAS 6134-99-2)
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Recommended Standards
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- 1-Cyclohexyl-1,2,3,4-tetrahydroisoquinoline (CAS 87443-64-9)
- (R)-2-(perfluorophenyl)pyrrolidine (CAS 1241680-02-3)
- (2,3,5,6-Tetrafluoro-4-propoxyphenyl)boronic acid (CAS 871125-71-2)
- Mca-Pro-Leu-Gly-Leu-Glu-Glu-Ala-Dap(Dnp)-NH2 (CAS 891198-38-2)
- 3-(4-Nitrobenzylidene)pentane-2,4-dione (CAS 29197-16-8)
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