6-Chloro-3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)-5-isopropylimidazo[1,5-a]quinoxalin-4(5H)-one CAS 124423-85-4
| CAS No. | 124423-85-4 |
| Molecular Formula | C18H16ClN5O2 |
| Molecular Weight | 369.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Chloro-3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)-5-isopropylimidazo[1,5-a]quinoxalin-4(5H)-one (C18H16ClN5O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 6-Chloro-3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)-5-isopropylimidazo[1,5-a]quinoxalin-4(5H)-one (CAS 124423-85-4), a certified reference material (molecular formula C18H16ClN5O2, MW 369.80 g/mol) for analytical method development and quality control.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H16ClN5O2 |
| Molecular Weight | 369.80 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
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Recommended Standards
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- 1-(3-Chloro-4-fluorophenyl)-3-(4-isobutylphenyl)-1h-pyrazole-5-carboxylic acid (CAS 618102-96-8)
- Ethyl 5-Nitroindole-2-carboxylate (CAS 16732-57-3)
- n-Ethylpent-1-yn-3-amine (CAS 1488880-22-3)
- YM 230888 (CAS 446257-23-4)
- Naphthalen-2-yl 2-methoxybenzoate (CAS 85966-09-2)
- 6-(Trifluoromethoxy)-2'-(trifluoromethyl)-[1,1'-biphenyl]-3-amine (CAS 1261548-48-4)
- 2-(3-Carbamoyl-1h-pyrazol-1-yl)acetic acid (CAS 1006458-58-7)
- 1-(2-hydroxyethyl)-1,2,3,6-tetrahydropyridazine-3,6-dione (CAS 17285-14-2)
- Ethyl (6-morpholino-5-nitropyrimidin-4-yl)carbamate (CAS 62652-84-0)
- Dulaglutide (CAS 923950-08-7)
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