4-propanoyl-1,2,3,4-tetrahydroquinoxalin-2-one CAS 923692-64-2
| CAS No. | 923692-64-2 |
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.23 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-propanoyl-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 923692-64-2), molecular formula C11H12N2O2 and molecular weight 204.23 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 4-propanoyl-1,2,3,4-tetrahydroquinoxalin-2-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 204.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 4-propanoyl-1,2,3,4-tetrahydroquinoxalin-2-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 | C11H12N2O2 |
| Molecular Weight | 204.23 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 4-Methoxy-5-((5-methyl-1H-pyrrol-2-yl)methylene)-1H-pyrrol-2(5H)-one (CAS 914617-29-1)
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- N-(piperidin-4-ylmethyl)pentanamide (CAS 1016699-34-5)
- 1,5,6,7-Tetrahydro-2-methyl-4H-indol-4-one (CAS 35308-68-0)
- 2-(3-Methyl-1H-pyrazol-5-yl)ethan-1-amine (CAS 54055-40-2)
- N-(2,4-dichlorobenzyl)-1-(furan-2-yl)methanamine (CAS 725226-21-1)
- 1-Aminopyrazin-1-ium (CAS 53975-17-0)
- 3419AF 926254-89-9 C15H16N2O2 N-(4-Amino-2-methylphenyl)-2-methoxybenzamide (CAS 926254-89-9)
- D-[Arg]30-Semaglutide (CAS CATO-C4X-222653)
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